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As filed with the Securities and Exchange Commission on April 23, 2008

Securities Act File No. 333-            

U.S. SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM N-2

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

(Check appropriate box or boxes)

Pre-Effective Amendment No.     

Post-Effective Amendment No.     

HERCULES TECHNOLOGY GROWTH CAPITAL, INC.

(Exact name of Registrant as specified in charter)

400 Hamilton Avenue, Suite 310

Palo Alto, CA 94301

(Address of Principal Executive Offices)

Registrant’s Telephone Number, including Area Code: (650) 289-3060

Manuel A. Henriquez

Chief Executive Officer

Hercules Technology Growth Capital, Inc.

400 Hamilton Avenue, Suite 310

Palo Alto, CA 94301

(Name and address of agent for service)

COPIES TO:

Cynthia M. Krus

Steven B. Boehm

Sutherland Asbill & Brennan LLP

1275 Pennsylvania Avenue, N.W.

Washington, DC 20004

APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING:

As soon as practicable after the effective date of this Registration Statement.

If any securities being registered on this form will be offered on a delayed or continuous basis in reliance on Rule 415 under the Securities Act of 1933, other than securities offered in connection with a dividend reinvestment plan, check the following box.  x

It is proposed that this filing will become effective (check appropriate box):  ¨  when declared effective pursuant to section 8(c).

CALCULATION OF REGISTRATION FEE UNDER THE SECURITIES ACT OF 1933

THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF THE SECURITIES ACT OF 1933, AS AMENDED, OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.

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The information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.

PROSPECTUS (Subject to Completion)

April 23, 2008

13,000,000 Shares Common Stock

This prospectus relates to the offer, from time to time, of 13,000,000 shares of our common stock, par value $0.001 per share by us.

The shares of common stock may be offered at prices and terms to be described in one or more supplements to this prospectus.

We are a specialty finance company that provides debt and equity growth capital to technology-related and life sciences companies at all stages of development from seed and emerging growth to expansion and established stages of development, including select publicly listed companies and lower middle market companies. We primarily finance privately-held companies backed by leading venture capital and private equity firms and also may finance certain publicly-traded companies that lack access to public capital or are sensitive to equity ownership dilution as well as lower middle market companies. We source our investments through our principal office located in Silicon Valley, as well as additional offices in the Boston, Boulder, Chicago, Columbus, and San Diego areas. Our goal is to be the leading structured mezzanine capital provider of choice for venture capital and private equity backed technology-related and life sciences companies requiring sophisticated and customized financing solutions. We invest primarily in structured mezzanine debt and, to a lesser extent, in senior debt and equity.

Our investment objective is to maximize our portfolio’s total return by generating current income from our debt investments and capital appreciation from our equity-related investments. We are an internally-managed, non-diversified closed-end investment company that has elected to be treated as a business development company under the Investment Company Act of 1940.

Our common stock is traded on the Nasdaq Global Select Market under the symbol “HTGC.” On April 15, 2008, the last reported sale price of a share of our common stock on the Nasdaq Global Select Market was $10.53.

An investment in our common stock involves risks and involves a heightened risk of total loss of investment. In addition, the companies in which we invest are subject to special risks. See “ Risk Factors” beginning on page 12 to read about risks that you should consider before investing in our common stock, including the risk of leverage.

Please read this prospectus before investing and keep it for future reference. It contains important information about us that a prospective investor ought to know before investing in our common stock. We file annual, quarterly and current reports, proxy statements and other information about us with the Securities and Exchange Commission. The information is available free of charge by contacting us at 400 Hamilton Avenue, Suite 310, Palo Alto, California 94301 or by telephone calling collect at (650) 289-3060 or on our website at www.herculestech.com. The SEC also maintains a website at www.sec.gov that contains such information.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

This prospectus may not be used to consummate sales of shares of common stock unless accompanied by a prospectus supplement.

The date of this prospectus is [            ], 2008

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You should rely only on the information contained in this prospectus. We have not authorized any dealer, salesperson or other person to provide you with different information or to make representations as to matters not stated in this prospectus. If anyone provides you with different or inconsistent information, you should not rely on it. This prospectus is not an offer to sell, or a solicitation of an offer to buy, any shares of common stock by any person in any jurisdiction where it is unlawful for that person to make such an offer or solicitation or to any person in any jurisdiction to whom it is unlawful to make such an offer or solicitation. The information in this prospectus is accurate only as of its date, and under no circumstances should the delivery of this prospectus or the sale of any common stock imply that the information in this prospectus is accurate as of any later date or that the affairs of Hercules Technology Growth Capital, Inc. have not changed since the date hereof. This prospectus will be updated to reflect material changes.

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Hercules Technology Growth Capital, Inc., our logo and other trademarks of Hercules Technology Growth Capital, Inc. mentioned in this prospectus are the property of Hercules Technology Growth Capital, Inc. All other trademarks or trade names referred to in this prospectus are the property of their respective owners.

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ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement that we have filed with the Securities and Exchange Commission using the “shelf” registration process. Under the shelf registration process, which constitutes a delayed offering in reliance on Rule 415 under the Securities Act of 1933, as amended, we may offer, from time to time, up to 13,000,000 shares of our common stock on the terms to be determined at the time of the offering. Shares of our common stock may be offered at prices and on terms described in one or more supplements to this prospectus. This prospectus provides you with a general description of the shares of our common stock that we may offer. Each time we use this prospectus to offer shares of our common stock, we will provide a prospectus supplement that will contain specific information about the terms of that offering. A prospectus supplement may also add, update or change information contained in this prospectus. Please carefully read this prospectus and any such supplements together with the additional information described under “Where You Can Find Additional Information” in the “Prospectus Summary” and “Risk Factors” sections before you make an investment decision.

A prospectus supplement may also add to, update or change information contained in this prospectus.

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FEES AND EXPENSES

The following table is intended to assist you in understanding the various costs and expenses that an investor in our common stock will bear directly or indirectly. However, we caution you that some of the percentages indicated in the table below are estimates and may vary. Except where the context suggests otherwise, whenever this prospectus contains a reference to fees or expenses paid by “you” or “us” or that “we” will pay fees or expenses, stockholders will indirectly bear such fees or expenses as investors in Hercules Technology Growth Capital.

Example

The following example demonstrates the projected dollar amount of total cumulative expenses that would be incurred over various periods with respect to a hypothetical investment in our common stock. These amounts are based upon our payment of annual operating expenses at the levels set forth in the table above and assume no additional leverage.

The example and the expenses in the tables above should not be considered a representation of our future expenses, and actual expenses may be greater or lesser than those shown. Moreover, while the example assumes, as required by the applicable rules of the SEC, a 5% annual return, our performance will vary and may result in a return greater or lesser than 5%. In addition, while the example assumes reinvestment of all dividends and distributions at net asset value, participants in our dividend reinvestment plan may receive shares valued at the market price in effect at that time. This price may be at, above or below net asset value. See “Dividend Reinvestment Plan” for additional information regarding our dividend reinvestment plan.

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SELECTED CONSOLIDATED FINANCIAL DATA

The selected consolidated financial data should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” “Senior Securities” on page 85 and the consolidated financial statements and related notes included elsewhere herein. The selected balance sheet data as of the end of fiscal 2007, 2006, 2005 and the period from February 2, 2004 (commencement of operations) to December 31, 2004 presented below, and the selected income statement data for fiscal 2007, 2006, 2005 and the period from February 2, 2004 (commencement of operations) to December 31, 2004 have been derived from our audited financial statements included elsewhere herein, which have been audited by Ernst & Young LLP, an independent registered public accounting firm.

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The following tables set forth certain quarterly financial information for each of the eight quarters up to and ending December 31, 2007. This information was derived from our unaudited consolidated financial statements. Results for any quarter are not necessarily indicative of results for the full year or for any future quarter.

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RISK FACTORS

Investing in our common stock involves a high degree of risk. Before you invest in shares of our common stock, you should be aware of various risks, including those described below. You should carefully consider these risks, together with all of the other information included in this prospectus, before you decide whether to make an investment in our common stock. The risks set forth below are not the only risks we face. If any of the following risks occur, our business, financial condition and results of operations could be materially adversely affected. In such case, our net asset value and the trading price of our common stock could decline, and you may lose all or part of your investment.

Risks Related to our Business and Structure

We have a limited operating history as a business development company, which may affect our ability to manage our business and may impair your ability to assess our prospects.

We were incorporated in December 2003 and commenced investment operations in September 2004. We are subject to all of the business risks and uncertainties associated with any new business enterprise, including the risk that we will not achieve our investment objective and that the value of our common stock could decline substantially. We have limited operating history as a business development company and as a RIC. As a result, we have limited operating results under these regulatory frameworks that can demonstrate to you either their effect on the business or our ability to manage the business within these frameworks. See “Regulation” and “Certain United States Federal Income Tax Considerations.” If we fail to maintain our status as a business development company or fail to qualify as a RIC, our operating flexibility and results of operations would be significantly affected.

We are dependent upon key management personnel for our future success, particularly Manuel A. Henriquez, and if we are not able to hire and retain qualified personnel, or if we lose any member of our senior management team, our ability to implement our business strategy could be significantly harmed.

We depend upon the members of our senior management, particularly Mr. Henriquez, as well as other key personnel for the identification, final selection, structuring, closing and monitoring of our investments. These employees have critical industry experience and relationships on which we rely to implement our business plan. If we lose the services of Mr. Henriquez, or of any other senior management members, we may not be able to operate the business as we expect, and our ability to compete could be harmed, which could cause our operating results to suffer. We believe our future success will depend, in part, on our ability to identify, attract and retain sufficient numbers of highly skilled employees. If we do not succeed in identifying, attracting and retaining such personnel, we may not be able to operate our business as we expect.

Our business model depends to a significant extent upon strong referral relationships with venture capital and private equity fund sponsors, and our inability to develop or maintain these relationships, or the failure of these relationships to generate investment opportunities, could adversely affect our business.

We expect that members of our management team will maintain their relationships with venture capital and private equity firms, and we will rely to a significant extent upon these relationships to provide us with our deal flow. If we fail to maintain our existing relationships or to develop new relationships with other firms or sources of investment opportunities, then we will not be able to grow our investment portfolio. In addition, persons with whom members of our management team have relationships are not obligated to provide us with investment opportunities and, therefore, there is no assurance that such relationships will lead to the origination of debt or other investments.

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We operate in a highly competitive market for investment opportunities, and we may not be able to compete effectively.

A large number of entities compete with us to make the types of investments that we plan to make in prospective portfolio companies. We compete with a large number of venture capital and private equity firms, as well as with other investment funds, investment banks and other sources of financing, including traditional financial services companies such as commercial banks and finance companies. Many of our competitors are substantially larger and have considerably greater financial, technical, marketing and other resources than we do. For example, some competitors may have a lower cost of funds and/or access to funding sources that are not available to us. This may enable some competitors to make commercial loans with interest rates that are comparable to or lower than the rates that we typically offer. We may lose prospective portfolio companies if we do not match competitors’ pricing, terms and structure. If we do match competitors’ pricing, terms or structure, we may experience decreased net interest income and increased risk of credit losses. In addition, some of our competitors may have higher risk tolerances or different risk assessments, which could allow them to consider a wider variety of investments, establish more relationships and build their market shares. Furthermore, many potential competitors are not subject to the regulatory restrictions that the 1940 Act imposes on us as a business development company or that the Code would impose on us as a RIC. If we are not able to compete effectively, our business, financial condition, and results of operations will be adversely affected. As a result of this competition, there can be no assurance that we will be able to identify and take advantage of attractive investment opportunities that we identify, or that we will be able to fully invest our available capital.

Because we intend to distribute substantially all of our income to our stockholders as long as we are treated as a RIC, we will continue to need additional capital to finance our growth. If additional funds are unavailable or not available on favorable terms, our ability to grow will be impaired.

In order to satisfy the tax requirements applicable to a RIC, to avoid payment of excise taxes and to minimize or avoid payment of income taxes, we intend as a RIC to distribute to our stockholders substantially all of our ordinary income and realized net capital gains except for certain realized net long-term capital gains, some or all of which we currently intend to retain, pay applicable income taxes with respect thereto and elect to treat as deemed distributions to our stockholders. As a business development company, we generally are required to meet a coverage ratio of total assets to total borrowings and other senior securities, which includes all of our borrowings and any preferred stock that we may issue in the future, of at least 200%. This requirement limits the amount that we may borrow. Because we will continue to need capital to grow our loan and investment portfolio, this limitation may prevent us from incurring debt and require us to raise additional equity at a time when it may be disadvantageous to do so. While we expect to be able to borrow and to issue additional debt and equity securities, we cannot assure you that debt and equity financing will be available to us on favorable terms, or at all, and debt financings may be restricted by the terms of any of our outstanding borrowings. In addition, as a business development company, we generally are not permitted to issue equity securities priced below net asset value without stockholder approval and approval of our independent directors. If additional funds are not available to us, we could be forced to curtail or cease new lending and investment activities, and our net asset value could decline.

Because we borrow money, there could be increased risk in investing in our company.

Lenders have fixed dollar claims on our assets that are superior to the claims of stockholders, and we have granted, and may in the future grant, lenders a security interest in our assets in connection with borrowings. In the case of a liquidation event, those lenders would receive proceeds before our stockholders. In addition, borrowings, also known as leverage, magnify the potential for gain or loss on amounts invested and, therefore, increase the risks associated with investing in our securities. Leverage is generally considered a speculative investment technique. If the value of our assets increases, then leveraging would cause the net asset value attributable to our common stock to increase more than it otherwise would have had we not leveraged. Conversely, if the value of our assets decreases, leveraging would cause the net asset value attributable to our

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common stock to decline more than it otherwise would have had we not leveraged. Similarly, any increase in our revenue in excess of interest expense on our borrowed funds would cause our net income to increase more than it would without the leverage. Any decrease in our revenue would cause our net income to decline more than it would have had we not borrowed funds and could negatively affect our ability to make distributions on common stock. Our ability to service any debt that we incur will depend largely on our financial performance and will be subject to prevailing economic conditions and competitive pressures. We and, indirectly our stockholders will bear the cost associated with our leverage activity. Our Credit Facility contains financial and operating covenants that could restrict our business activities, including our ability to declare dividends if we default under certain provisions.

As of December 31, 2007, we had outstanding indebtedness of $79.2 million pursuant to our securitized Credit Facility. If our portfolio of investments fails to provide adequate returns and we are unable to otherwise raise funds, we may be unable to make interest or principal payments on our indebtedness as they become due. In addition, we had approximately $55.1 million outstanding under our SBA debenture. We expect, in the future, to borrow from, and issue senior debt securities to, banks, insurance companies and other lenders, including additional borrowings pursuant to the Credit Facility. See “Management’s Discussion and Analysis of Financial Condition—Borrowings.”

As a business development company, we generally are required to meet a coverage ratio of total assets to total borrowings and other senior securities, which include all of our borrowings and any preferred stock that we may issue in the future, of at least 200%. If this ratio declines below 200%, we may not be able to incur additional debt and may need to sell a portion of our investments to repay some debt when it is disadvantageous to do so, and we may not be able to make distributions.

Illustration. The following table illustrates the effect of leverage on returns from an investment in our common stock assuming various annual returns, net of expenses. The calculations in the table below are hypothetical and actual returns may be higher or lower than those appearing in the table below.

Because most of our investments typically are not in publicly-traded securities, there is uncertainty regarding the value of our investments, which could adversely affect the determination of our net asset value.

At December 31, 2007, portfolio investments, 99% of which are valued at fair value by the Board of Directors, were approximately 98% of our total assets. We expect our investments to continue to consist primarily of securities issued by privately-held companies, the fair value of which is not readily determinable. In addition, we are not permitted to maintain a general reserve for anticipated loan losses. Instead, we are required by the 1940 Act to specifically value each investment and record an unrealized gain or loss for any asset that we believe has increased or decreased in value. There is no single standard for determining fair value in good faith. We value these securities at fair value as determined in good faith by our Board of Directors, based on the recommendations of our Board of Directors’ Valuation Committee. The Valuation Committee utilizes its best judgment in arriving at the fair value of these securities. As a result, determining fair value requires that judgment be applied to the specific facts and circumstances of each portfolio investment while employing a consistently applied valuation process for the types of investments we make. However, the Board of Directors retains ultimate authority as to the appropriate valuation of each investment. Because such valuations are

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inherently uncertain and may be based on estimates, our determinations of fair value may differ materially from the values that would be assessed if a ready market for these securities existed. We adjust quarterly the valuation of our portfolio to reflect the Board of Directors’ determination of the fair value of each investment in our portfolio. Any changes in fair value are recorded in our statement of operations as net change in unrealized appreciation or depreciation. Our net asset value could be adversely affected if our determinations regarding the fair value of our investments were materially higher than the values that we ultimately realize upon the disposal of such securities.

Recent accounting pronouncements may impact our future financial position and results of operations.

In September 2006, the FASB issued Statement No. 157, Fair Value Measurements (“FAS 157”) which provides enhanced guidance for using fair value to measure assets and liabilities. FAS 157 applies whenever other standards require (or permit) assets or liabilities to be measured at fair value but does not expand the use of fair value in any new circumstances. FAS 157 is effective for fiscal years beginning after November 15, 2007, and interim periods within those fiscal years, with early adoption permitted. We adopted FAS 157 on January 1, 2008. As of December 31, 2007, we are evaluating the impact of FAS 157 on our financial position and results of operations but do not believe the adoption of FAS 157 will have a material impact on our financial position and results of operations. However, the actual impact on our consolidated financial statements in the period of adoption and subsequent to the period of adoption cannot be determined at this time as it will be influenced by the estimates of fair value for that period and the number and amount of investments we originate, acquire or exit. See Note 1 to our accompanying consolidated financial statements.

Our financial results could be negatively affected if a significant portfolio investment fails to perform as expected.

Our total investment in companies may be significant individually or in the aggregate. As a result, if a significant investment in one or more companies fails to perform as expected, our financial results could be more negatively affected and the magnitude of the loss could be more significant than if we had made smaller investments in more companies. The following table shows the fair value of investments held at December 31, 2007 that are greater than 5% of net assets:

IKANO Communications provides global IP network and application solutions and private-label Internet services, including dial-up, DSL, and high-speed wireless. Additionally, the Company offers Web and mail hosting, server-side filtering, branded dynamic portal development, branded customer service and technical support, automated accounting, and Web acceleration.

Tectura Corporation is a leading global provider of integrated business solutions to mid-market companies and large enterprise divisions specializing in Enterprise Resource Planning and Customer Relationship Management solutions built on Microsoft Business Solutions software (Axapta, Great Plains, Navision, Solomon, and CRM) and integrated with leading-edge Microsoft products and technologies.

Zayo Bandwidth Corporation owns and operates fiber optic networks in various regions of the United States and provides bandwidth services to carriers, web-centric companies, public institutions and enterprises.

Our financial results could be negatively affected if these portfolio companies or any of our other significant portfolio companies encounter financial difficulty and fail to repay their obligations or to perform as expected.

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Regulations governing our operations as a business development company affect our ability to, and the manner in which, we raise additional capital, which may expose us to risks.

Our business will require a substantial amount of capital. We may acquire additional capital from the issuance of senior securities, including borrowings, securitization transactions or other indebtedness, or the issuance of additional shares of our common stock. However, we may not be able to raise additional capital in the future on favorable terms or at all. We may issue debt securities, other evidences of indebtedness or preferred stock, and we may borrow money from banks or other financial institutions, which we refer to collectively as “senior securities,” up to the maximum amount permitted by the 1940 Act. The 1940 Act permits us to issue senior securities in amounts such that our asset coverage, as defined in the 1940 Act, equals at least 200% after each issuance of senior securities. Our ability to pay dividends or issue additional senior securities would be restricted if our asset coverage ratio were not at least 200%. If the value of our assets declines, we may be unable to satisfy this test. If that happens, we may be required to liquidate a portion of our investments and repay a portion of our indebtedness at a time when such sales may be disadvantageous. As a result of issuing senior securities, we would also be exposed to typical risks associated with leverage, including an increased risk of loss. If we issue preferred stock, the preferred stock would rank “senior” to common stock in our capital structure, preferred stockholders would have separate voting rights and might have rights, preferences, or privileges more favorable than those of our common stockholders and the issuance of preferred stock could have the effect of delaying, deferring, or preventing a transaction or a change of control that might involve a premium price for holders of our common stock or otherwise be in your best interest.

To the extent that we are constrained in our ability to issue debt or other senior securities, we will depend on issuances of common stock to finance operations. Other than in certain limited situations such as rights offerings, as a business development company, we are generally not able to issue our common stock at a price below net asset value without first obtaining required approvals from our stockholders and our independent directors. If we raise additional funds by issuing more common stock or senior securities convertible into, or exchangeable for, our common stock, then the percentage ownership of our stockholders at that time will decrease, and you might experience dilution. Moreover, we can offer no assurance that we will be able to issue and sell additional equity securities in the future, on favorable terms or at all.

In addition to issuing securities to raise capital as described above, we anticipate that, in the future, we may securitize our loans to generate cash for funding new investments. An inability to successfully securitize our loan portfolio could limit our ability to grow our business and fully execute our business strategy.

When we are a debt or minority equity investor in a portfolio company, we may not be in a position to control the entity, and management of the company may make decisions that could decrease the value of our portfolio holdings.

We make both debt and minority equity investments; therefore, we are subject to the risk that a portfolio company may make business decisions with which we disagree, and the stockholders and management of such company may take risks or otherwise act in ways that do not serve our interests. As a result, a portfolio company may make decisions that could decrease the value of our portfolio holdings.

If we do not invest a sufficient portion of our assets in qualifying assets, we could fail to qualify as a business development company or be precluded from investing according to our current business strategy.

As a business development company, we may not acquire any assets other than “qualifying assets” unless, at the time of and after giving effect to such acquisition, at least 70% of our total assets are qualifying assets. See “Regulation.”

We believe that most of the senior and mezzanine loans we make will constitute qualifying assets. However, we may be precluded from investing in what we believe are attractive investments if such investments are not qualifying assets for purposes of the 1940 Act. If we do not invest a sufficient portion of our assets in qualifying

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assets, we could lose our status as a business development company, which would have a material adverse effect on our business, financial condition and results of operations. Similarly, these rules could prevent us from making follow-on investments in existing portfolio companies (which could result in the dilution of our position) or could require us to dispose of investments at inappropriate times in order to comply with the 1940 Act. If we need to dispose of such investments quickly, it would be difficult to dispose of such investments on favorable terms. For example, we may have difficulty in finding a buyer and, even if we do find a buyer, we may have to sell the investments at a substantial loss.

We may have difficulty paying our required distributions if we recognize income before or without receiving cash representing such income.

In accordance with generally accepted accounting principles and tax requirements, we include in income certain amounts that we have not yet received in cash, such as contracted payment-in-kind interest, which represents contractual interest added to a loan balance and due at the end of such loan’s term. In addition to the cash yields received on our loans, in some instances, certain loans may also include any of the following:

end-of-term payments, exit fees, balloon payment fees or prepayment fees (“other deferred payments”). We must include in taxable income each year a portion of contracted payment-in-kind interest or other deferred payments that accrues over the life of the obligations as original issue discount or other income accrual even though we may not have received any cash payment during the year of accrual. Any warrants that we receive in connection with our debt investments will generally be valued as part of the negotiation process with the particular portfolio company. As a result, a portion of the aggregate purchase price for the debt investments and warrants will be allocated to the warrants that we receive. This will generally result in the associated debt investments being treated as issued with original issue discount for tax purposes. A portion of such original issue discount must be accrued and included in our taxable income each year over the life of the debt investment even though we may not receive any cash payment with respect to such income in the year of accrual. We also may be required to include in income certain other amounts that we will not receive in cash.

Because any original issue discount or other amounts accrued will be included in our investment company taxable income for the year of accrual, we may be required to distribute such income to our stockholders in order to satisfy the annual distribution requirements applicable to RICs even though we may not have received any corresponding cash amount with respect to such income. As a result, we may have difficulty meeting the annual distribution requirements necessary to maintain our status as RIC unless we are able to obtain cash from other sources. Accordingly, we may have to, among other things, sell some of our investments at times and/or at prices we would not consider advantageous, raise additional debt or equity capital or forgo new investment opportunities in order to make the necessary distributions. If we are not able to obtain cash from other sources in order to make the necessary distributions, we may fail to qualify for RIC tax treatment and thus become subject to corporate-level income tax on all of our income. See “Certain United States Federal Income Tax Considerations—Taxation as a Regulated Investment Company.”

There is a risk that you may not receive distributions or that our distributions may not grow over time.

We intend to make distributions on a quarterly basis to our stockholders. We cannot assure you that we will achieve investment results, or our business may not perform in a manner that will allow us to make a specified level of cash distributions or year-to-year increases in cash distributions. In addition, due to the asset coverage test applicable to us as a business development company, we may be limited in our ability to make distributions. Also, our credit facility limits our ability to declare dividends if we default under certain provisions.

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If we are unable to manage our future growth effectively, we may be unable to achieve our investment objective, which could adversely affect our financial condition and results of operations and cause the value of your investment to decline.

Our ability to achieve our investment objective will depend on our ability to sustain growth. Sustaining growth will depend, in turn, on our senior management team’s ability to identify, evaluate, finance and invest in suitable companies that meet our investment criteria. Accomplishing this result on a cost-effective basis is largely a function of our marketing capabilities, our management of the investment process, our ability to provide efficient services and our access to financing sources on acceptable terms. Failure to manage our future growth effectively could have a material adverse effect on our business, financial condition and results of operations.

Our quarterly and annual operating results are subject to fluctuation as a result of the nature of our business, and if we fail to achieve our investment objective, the net asset value of our common stock may decline.

We could experience fluctuations in our quarterly and annual operating results due to a number of factors, some of which are beyond our control, including, but not limited to, the interest rate payable on the debt securities that we acquire, the default rate on such securities, the level of our expenses, variations in investment origination volume, variations in fee income earned, variations in and the timing of the recognition of realized and unrealized gains or losses, the degree to which we encounter competition in our markets and general economic conditions. As a result of these factors, results for any period should not be relied upon as being indicative of performance in future periods.

In addition, any of these factors could negatively impact our ability to achieve our investment objectives, which may cause our net asset value of our common stock to decline.

Fluctuations in interest rates may adversely affect our profitability.

A portion of our income will depend upon the difference between the rate at which we borrow funds and the interest rate on the debt securities in which we invest. Because we will borrow money to make investments, our net investment income is dependent upon the difference between the rate at which we borrow funds and the rate at which we invest these funds. Typically, we anticipate that our interest-earning investments will accrue and pay interest at fixed rates, and that our interest-bearing liabilities will accrue interest at variable rates. As a result, there can be no assurance that a significant change in market interest rates will not have a material adverse effect on our net investment income. We anticipate using a combination of equity and long-term and short-term borrowings to finance our investment activities.

A significant increase in market interest rates could harm our ability to attract new portfolio companies and originate new loans and investments. We expect that a significant percentage of our initial investments in debt securities will be at fixed rates. However, in the event that we make investments in debt securities at variable rates, a significant increase in market interest rates could also result in an increase in our non-performing assets and a decrease in the value of our portfolio because our floating-rate loan portfolio companies may be unable to meet higher payment obligations. In periods of rising interest rates, our cost of funds would increase, resulting in a decrease in our net investment income. In addition, a decrease in interest rates may reduce net income, because new investments may be made at lower rates despite the increased demand for our capital that the decrease in interest rates may produce. We may, but will not be required to, hedge against the risk of adverse movement in interest rates in our short-term and long-term borrowings relative to our portfolio of assets. If we engage in hedging activities, it may limit our ability to participate in the benefits of lower interest rates with respect to the hedged portfolio. Adverse developments resulting from changes in interest rates or hedging transactions could have a material adverse effect on our business, financial condition, and results of operations.

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If we are unable to continue to borrow money in order to leverage our equity capital, then our ability to make new investments and to execute our business plan will be impaired.

As of December 31, 2007, we had outstanding borrowings of $79.2 million pursuant to the Credit Facility and outstanding borrowings of approximately $55.1 million pursuant to our SBA debenture. There can be no assurance that we will be successful in obtaining any additional debt capital on terms acceptable to us or at all. If we are unable to obtain debt capital, then our equity investors will not benefit from the potential for increased returns on equity resulting from leverage to the extent that our investment strategy is successful.

In addition, the terms of available financing may place limits on our financial and operating flexibility. If we are unable to obtain sufficient capital in the future, we may:

It is likely that the terms of any long-term or revolving credit or warehouse facility we may enter into in the future could constrain our ability to grow our business.

As of December 31, 2007, the Company, through Hercules Funding Trust I, an affiliated statutory trust, has a $250 million Credit Facility. We expect to enter into additional revolving credit or warehouse facilities in the future. While there can be no assurance that we will be able to borrow from banks or other financial institutions, we expect that we will, at some time in the future, obtain a long-term or revolving credit facility or a warehouse facility. The current lenders have, and any future lender or lenders will have fixed dollar claims on our assets that are senior to the claims of our stockholders and, thus, will have a preference over our stockholders with respect to our assets. In addition, we may grant a security interest in our assets in connection with any such borrowing. We expect such a facility to contain customary default provisions such as a minimum net worth amount, a profitability test, and a restriction on changing our business and loan quality standards. An event of default under any credit facility would likely result, among other things, in termination of the availability of further funds under that facility and an accelerated maturity date for all amounts outstanding under the facility, which would likely disrupt our business and, potentially, the business of the portfolio companies whose loans that we financed through the facility. This could reduce our revenues and, by delaying any cash payment allowed to us under our facility until the lender has been paid in full, reduce our liquidity and cash flow and impair our ability to grow our business and maintain our status as a RIC.

Our cost of borrowing is increased by the warrant participation agreement we have with one of our lenders. In addition, our realized gains are reduced by amounts paid pursuant to the warrant participation agreement.

Citigroup has an equity participation right through a warrant participation agreement on the pool of loans and warrants collateralized under the Citigroup facility. Pursuant to the warrant participation agreement, we granted to Citigroup a 10% participation in all warrants held as collateral. However, no additional warrants are included in collateral subsequent to the Credit Facility amendment on May 2, 2007. As a result, Citigroup is entitled to 10% of the realized gains on the warrants until the realized gains paid to Citigroup pursuant to the agreement equals $3,750,000 (the “Maximum Participation Limit”). The obligations under the warrant participation agreement continue even after the Credit Facility is terminated until the Maximum Participation Limit has been reached.

During the year ended December 31, 2007, we reduced our realized gain by approximately $400,000 for Citigroup’s participation in the gain on sale of an equity security and we recorded an additional liability and reduced our unrealized gains by a net amount of approximately $609,000 for Citigroup’s participation in unrealized gains in the warrant portfolio. Since inception of the agreement, we have paid Citigroup approximately $680,000 under the warrant participation agreement thereby reducing our realized gains. In addition, our realized gains will be reduced by the amounts owed to Citigroup under the warrant participation

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agreement. The value of Citigroup’s participation right on unrealized gains in the related equity investments since inception of the agreement was approximately $690,000 at December 31, 2007 and is included in accrued liabilities and reduces the unrealized gain recognized by us at December 31, 2007. Citigroup’s rights under the warrant participation agreement increase our cost of borrowing and reduce our realized gains.

If we are unable to satisfy Code requirements for qualification as a RIC, then we will be subject to corporate-level income tax, which would adversely affect our results of operations and financial condition.

We elected to be treated as a RIC for federal income tax purposes with the filing of our federal corporate income tax return for 2006. We will not qualify for the tax treatment allowable to RICs if we are unable to comply with the source of income, diversification and distribution requirements contained in Subchapter M of the Code, or if we fail to maintain our election to be regulated as a business development company under the 1940 Act. If we fail to qualify for the federal income tax benefits allowable to RICs for any reason and remain or become subject to a corporate-level income tax, the resulting taxes could substantially reduce our net assets, the amount of income available for distribution to our stockholders and the actual amount of our distributions. Such a failure would have a material adverse effect on us, the net asset value of our common stock and the total return, if any, obtainable from your investment in our common stock. Any net operating losses that we incur in periods during which we qualify as a RIC will not offset net capital gains (i.e., net realized long-term capital gains in excess of net realized short-term capital losses) that we are otherwise required to distribute, and we cannot pass such net operating losses through to our stockholders. In addition, net operating losses that we carry over to a taxable year in which we qualify as a RIC normally cannot offset ordinary income or capital gains.

One of our wholly-owned subsidiaries is licensed by the U.S. Small Business Administration, and as a result, we will be subject to SBA regulations.

Our wholly-owned subsidiary HT II is licensed to act as an SBIC and is regulated by the SBA. Under current SBA regulations, a licensed SBIC can provide capital to those entities that have a tangible net worth not exceeding $18.0 million and an average annual net income after Federal income taxes not exceeding $6.0 million for the two most recent fiscal years. In addition, a licensed SBIC must devote 20.0% of its investment activity to those entities that have a tangible net worth not exceeding $6.0 million and an average annual net income after Federal income taxes not exceeding $2.0 million for the two most recent fiscal years. The SBA regulations also provide alternative size standard criteria to determine eligibility, which depend on the industry in which the business is engaged and are based on factors such as the number of employees and gross sales. The SBA regulations permit licensed SBICs to make long term loans to small businesses, invest in the equity securities of such businesses and provide them with consulting and advisory services. The SBA also places certain limitations on the financing terms of investments by SBICs in portfolio companies and prohibits SBICs from providing funds for certain purposes or to businesses in a few prohibited industries. Compliance with SBA requirements may cause HT II to forego attractive investment opportunities that are not permitted under SBA regulations.

Further, the SBA regulations require that a licensed SBIC be periodically examined and audited by the SBA to determine its compliance with the relevant SBA regulations. The SBA prohibits, without prior SBA approval, a “change of control” of an SBIC or transfers that would result in any person (or a group of persons acting in concert) owning 10.0% or more of a class of capital stock of a licensed SBIC. If HT II fails to comply with applicable SBA regulations, the SBA could, depending on the severity of the violation, limit or prohibit HT II’s use of debentures, declare outstanding debentures immediately due and payable, and/or limit HT II from making new investments. Such actions by the SBA would, in turn, negatively affect us because HT II is our wholly owned subsidiary.

Changes in laws or regulations governing our business could negatively affect the profitability of our operations.

Changes in the laws or regulations, or the interpretations of the laws and regulations, which govern business development companies, small business investment companies, RICs or non-depository commercial lenders

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could significantly affect our operations and our cost of doing business. We are subject to federal, state and local laws and regulations and are subject to judicial and administrative decisions that affect our operations, including our loan originations, maximum interest rates, fees and other charges, disclosures to portfolio companies, the terms of secured transactions, collection and foreclosure procedures, and other trade practices. If these laws, regulations or decisions change, or if we expand our business into jurisdictions that have adopted more stringent requirements than those in which we currently conduct business, then we may have to incur significant expenses in order to comply or we may have to restrict our operations. In addition, if we do not comply with applicable laws, regulations and decisions, then we may lose licenses needed for the conduct of our business and be subject to civil fines and criminal penalties, any of which could have a material adverse effect upon our business results of operations or financial condition.

Risks Related to Our Investments

Our investments are concentrated in a limited number of technology-related companies, which subjects us to the risk of significant loss if any of these companies default on their obligations under any of their debt securities that we hold, or if any of the technology-related industry sectors experience a downturn.

We have invested and intend to continue investing in a limited number of technology-related companies. A consequence of this limited number of investments is that the aggregate returns we realize may be significantly adversely affected if a small number of investments perform poorly or if we need to write down the value of any one investment. Beyond the asset diversification requirements to which we will be subject as a RIC, we do not have fixed guidelines for diversification or limitations on the size of our investments in any one portfolio company and our investments could be concentrated in relatively few issuers. In addition, we have invested in and intend to continue investing, under normal circumstances, at least 80% of the value of our total assets (including the amount of any borrowings for investment purposes) in technology-related and life-science companies. As a result, a downturn in technology-related and life-science industry sectors could materially adversely affect us.

Our investments may be concentrated in portfolio companies that may have limited operating histories and financial resources.

We expect that our portfolio will continue to consist of investments that may have relatively limited operating histories. These companies may be particularly vulnerable to economic downturns, may have more limited access to capital and higher funding costs, may have a weaker financial position and may need more capital to expand or compete. These businesses also may experience substantial variations in operating results. They may face intense competition, including from companies with greater financial, technical and marketing resources. Furthermore, some of these companies do business in regulated industries and could be affected by changes in government regulation. Accordingly, these factors could impair their cash flow or result in other events, such as bankruptcy, which could limit their ability to repay their obligations to us, and may adversely affect the return on, or the recovery of, our investment in these companies. We cannot assure you that any of our investments in our portfolio companies will be successful. Our portfolio companies compete with larger, established companies with greater access to, and resources for, further development in these new technologies. We may lose our entire investment in any or all of our portfolio companies.

Our investment strategy focuses on technology-related and life-science companies, which are subject to many risks, including volatility, intense competition, shortened product life cycles and periodic downturns, and you could lose all or part of your investment.

We have invested and will continue investing primarily in technology-related and life-science companies, many of which may have narrow product lines and small market shares, which tend to render them more vulnerable to competitors’ actions and market conditions, as well as to general economic downturns. The revenues, income (or losses), and valuations of technology-related and life-science companies can and often do fluctuate suddenly and dramatically. In addition, technology-related markets are generally characterized by

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abrupt business cycles and intense competition. Beginning in mid-2000, there was substantial excess production capacity and a significant slowdown in many technology-related industries. This overcapacity, together with a cyclical economic downturn, resulted in substantial decreases in the market capitalization of many technology-related and life-science companies. While such valuations have recovered to some extent, such decreases in market capitalization may occur again, and any future decreases in technology-related and life-science company valuations may be substantial and may not be temporary in nature. Therefore, our portfolio companies may face considerably more risk of loss than do companies in other industry sectors.

Because of rapid technological change, the average selling prices of products and some services provided by technology-related and life-science companies have historically decreased over their productive lives. As a result, the average selling prices of products and services offered by technology-related and life-science companies may decrease over time, which could adversely affect their operating results, their ability to meet obligations under their debt securities and the value of their equity securities. This could, in turn, materially adversely affect our business, financial condition and results of operations.

We have invested in and may continue investing in technology-related and life-science companies that do not have venture capital or private equity firms as equity investors, and these companies may entail a higher risk of loss than do companies with institutional equity investors, which could increase the risk of loss of your investment.

Our portfolio companies will often require substantial additional equity financing to satisfy their continuing working capital and other cash requirements and, in most instances, to service the interest and principal payments on our investment. Portfolio companies that do not have venture capital or private equity investors may be unable to raise any additional capital to satisfy their obligations or to raise sufficient additional capital to reach the next stage of development. Portfolio companies that do not have venture capital or private equity investors may be less financially sophisticated and may not have access to independent members to serve on their boards, which means that they may be less successful than portfolio companies sponsored by venture capital or private equity firms. Accordingly, financing these types of companies may entail a higher risk of loss than would financing companies that are sponsored by venture capital or private equity firms.

Economic recessions or downturns could impair the ability of our portfolio companies to repay loans, which, in turn, could increase our non-performing assets, decrease the value of our portfolio, reduce our volume of new loans and harm our operating results, which might have an adverse effect on our results of operations.

Many of our portfolio companies may be susceptible to economic slowdowns or recessions and may be unable to repay our loans during such periods. Therefore, our non-performing assets are likely to increase and the value of our portfolio is likely to decrease during such periods. Adverse economic conditions also may decrease the value of collateral securing some of our loans and the value of our equity investments. Economic slowdowns or recessions could lead to financial losses in our portfolio and a decrease in revenues, net income and assets. Unfavorable economic conditions also could increase our funding costs, limit our access to the capital markets or result in a decision by lenders not to extend credit to us.

A portfolio company’s failure to satisfy financial or operating covenants imposed by us or other lenders could lead to defaults and, potentially, termination of the portfolio company’s loans and foreclosure on its secured assets, which could trigger cross-defaults under other agreements and jeopardize the portfolio company’s ability to meet its obligations under the debt securities that we hold. We may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms with a defaulting portfolio company. In addition, if a portfolio company goes bankrupt, even though we may have structured our investment as senior debt or secured debt, depending on the facts and circumstances, including the extent to which we actually provided significant “managerial assistance,” if any, to that portfolio company, a bankruptcy court might re-characterize our debt holding and subordinate all or a portion of our claim to that of other creditors. These events could harm our financial condition and operating results.

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We do not control our portfolio companies. These portfolio companies may face intense competition, including competition from companies with greater financial resources, more extensive research and development, manufacturing, marketing and service capabilities and greater number of qualified and experienced managerial and technical personnel. They may need additional financing which they are unable to secure and which we are unable or unwilling to provide, or they may be subject to adverse developments unrelated to the technologies they acquire.

The inability of our portfolio companies to commercialize their technologies or create or develop commercially viable products or businesses would have a negative impact on our investment returns.

The possibility that our portfolio companies will not be able to commercialize their technology, products or business concepts presents significant risks to the value of our investment. Additionally, although some of our portfolio companies may already have a commercially successful product or product line when we invest, technology-related and life-science products and services often have a more limited market- or life-span than have products in other industries. Thus, the ultimate success of these companies often depends on their ability to continually innovate, or raise additional capital, in increasingly competitive markets. Their inability to do so could affect our investment return. In addition, the intellectual property held by our portfolio companies often represents a substantial portion of the collateral, if any, securing our investments. We cannot assure you that any of our portfolio companies will successfully acquire or develop any new technologies, or that the intellectual property the companies currently hold will remain viable. Even if our portfolio companies are able to develop commercially viable products, the market for new products and services is highly competitive and rapidly changing. Neither our portfolio companies nor we have any control over the pace of technology development. Commercial success is difficult to predict, and the marketing efforts of our portfolio companies may not be successful.

An investment strategy focused primarily on privately-held companies presents certain challenges, including the lack of available information about these companies, a dependence on the talents and efforts of only a few key portfolio company personnel and a greater vulnerability to economic downturns.

We invest primarily in privately-held companies. Generally, very little public information exists about these companies, and we are required to rely on the ability of our management team to obtain adequate information to evaluate the potential returns from investing in these companies. If we are unable to uncover all material information about these companies, then we may not make a fully informed investment decision, and we may not receive the expected return on our investment or lose some or all of the money invested in these companies. Also, privately-held companies frequently have less diverse product lines and a smaller market presence than do larger competitors. Privately-held companies are, thus, generally more vulnerable to economic downturns and may experience more substantial variations in operating results than do larger competitors. These factors could affect our investment returns.

In addition, our success depends, in large part, upon the abilities of the key management personnel of our portfolio companies, who are responsible for the day-to-day operations of our portfolio companies. Competition for qualified personnel is intense at any stage of a company’s development, and high turnover of personnel is common in technology-related companies. The loss of one or more key managers can hinder or delay a company’s implementation of its business plan and harm its financial condition. Our portfolio companies may not be able to attract and retain qualified managers and personnel. Any inability to do so may negatively impact our investment returns.

If our portfolio companies are unable to protect their intellectual property rights, then our business and prospects could be harmed. If our portfolio companies are required to devote significant resources to protecting their intellectual property rights, then the value of our investment could be reduced.

Our future success and competitive position depend in part upon the ability of our portfolio companies to obtain and maintain proprietary technology used in their products and services, which will often represent a

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significant portion of the collateral, if any, securing our investment. The portfolio companies will rely, in part, on patent, trade secret and trademark law to protect that technology, but competitors may misappropriate their intellectual property, and disputes as to ownership of intellectual property may arise. Portfolio companies may, from time to time, be required to institute litigation in order to enforce their patents, copyrights or other intellectual property rights, to protect their trade secrets, to determine the validity and scope of the proprietary rights of others or to defend against claims of infringement. Such litigation could result in substantial costs and diversion of resources. Similarly, if a portfolio company is found to infringe upon or misappropriate a third party’s patent or other proprietary rights, that portfolio company could be required to pay damages to such third party, alter its own products or processes, obtain a license from the third party and/or cease activities utilizing such proprietary rights, including making or selling products utilizing such proprietary rights. Any of the foregoing events could negatively affect both the portfolio company’s ability to service our debt investment and the value of any related debt and equity securities that we own, as well as any collateral securing our investment.

We may not be able to realize our entire investment on equipment-based loans in the case of default.

We may, from time to time, provide loans that will be collateralized only by equipment of the portfolio company. If the portfolio company defaults on the loan our sole recourse would be to take possession of the underlying equipment to satisfy the outstanding debt. The residual value of the equipment at the time we would take possession may not be sufficient to satisfy the outstanding debt and we could experience a loss on the disposition of the equipment.

Our investments in foreign securities may involve significant risks in addition to the risks inherent in U.S. investments.

Our investment strategy contemplates that a portion of our investments may be in securities of foreign companies. Investing in foreign companies may expose us to additional risks not typically associated with investing in U.S. companies. These risks include changes in exchange control regulations, political and social instability, expropriation, imposition of foreign taxes, less liquid markets and less available information than is generally the case in the U.S., higher transaction costs, less government supervision of exchanges, brokers and issuers, less developed bankruptcy laws, difficulty in enforcing contractual obligations, lack of uniform accounting and auditing standards and greater price volatility.

Some of our portfolio companies may need additional capital, which may not be readily available.

Our portfolio companies will often require substantial additional equity financing to satisfy their continuing working capital and other requirements, and in most instances to service the interest and principal payments on our investment. Each round of venture financing is typically intended to provide a company with only enough capital to reach the next stage of development. We cannot predict the circumstances or market conditions under which our portfolio companies will seek additional capital. It is possible that one or more of our portfolio companies will not be able to raise additional financing or may be able to do so only at a price or on terms unfavorable to us, either of which would negatively impact our investment returns. Some of these companies may be unable to obtain sufficient financing from private investors, public capital markets or traditional lenders. Accordingly, financing these types of companies may entail a higher risk of loss than would financing companies that are able to utilize traditional credit sources.

We may be unable or decide not to make additional cash investments in our portfolio companies which could result in our losing our initial investment if the portfolio company fails.

We may have to make additional cash investments in our portfolio companies to protect our overall investment value in the particular company. We retain the discretion to make any additional investments as our management determines. The failure to make such additional investments may jeopardize the continued viability of a portfolio company, and our initial (and subsequent) investments. Moreover, additional investments may limit the number of companies in which we can make initial investments. In determining whether to make an

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additional investment our management will exercise its business judgment and apply criteria similar to those used when making the initial investment. We cannot assure you that we will have sufficient funds to make any necessary additional investments, which could adversely affect our success and result in the loss of a substantial portion or all of our investment in a portfolio company.

If our investments do not meet our performance expectations, you may not receive distributions.

We intend to make distributions on a quarterly basis to our stockholders. We may not be able to achieve operating results that will allow us to make distributions at a specific level or to increase the amount of these distributions from time to time. In addition, due to the asset coverage test applicable to us as a business development company, we may be limited in our ability to make distributions. See “Regulation.” Also, restrictions and provisions in any future credit facilities may limit our ability to make distributions. As a RIC, if we do not distribute a certain percentage of our income annually, we will suffer adverse tax consequences, including failure to obtain, or possible loss of, the federal income tax benefits allowable to RICs. See “Certain United States Federal Income Tax Considerations—Taxation as a Regulated Investment Company.” We cannot assure you that you will receive distributions at a particular level or at all.

Any unrealized depreciation that we experience on our loan portfolio may be an indication of future realized losses, which could reduce our income available for distribution.

As a business development company, we are required to carry our investments at market value or, if no market value is ascertainable, at the fair value as determined in good faith by our Board of Directors in accordance with procedures approved by our Board of Directors. Decreases in the market values or fair values of our investments will be recorded as unrealized depreciation. Any unrealized depreciation in our loan portfolio could be an indication of a portfolio company’s inability to meet its repayment obligations to us with respect to the affected loans. This could result in realized losses in the future and ultimately in reductions of our income available for distribution in future periods.

The lack of liquidity in our investments may adversely affect our business and, if we need to sell any of our investments, we may not be able to do so at a favorable price. As a result, we may suffer losses.

We generally invest in debt securities with terms of up to seven years and hold such investments until maturity, and we do not expect that our related holdings of equity securities will provide us with liquidity opportunities in the near-term. We invest and expect to continue investing in companies whose securities have no established trading market and whose securities are and will be subject to legal and other restrictions on resale or whose securities are and will be less liquid than are publicly-traded securities. The illiquidity of these investments may make it difficult for us to sell these investments when desired. In addition, if we are required to liquidate all or a portion of our portfolio quickly, we may realize significantly less than the value at which we had previously recorded these investments. As a result, we do not expect to achieve liquidity in our investments in the near-term. However, to maintain our qualification as a business development company and as a RIC, we may have to dispose of investments if we do not satisfy one or more of the applicable criteria under the respective regulatory frameworks. Our investments are usually subject to contractual or legal restrictions on resale, or are otherwise illiquid, because there is usually no established trading market for such investments. The illiquidity of most of our investments may make it difficult for us to dispose of the investments at a favorable price and, as a result, we may suffer losses.

If the assets securing the loans that we make decrease in value, then we may lack sufficient collateral to cover losses.

We believe that our portfolio companies generally will be able to repay our loans from their available capital, from future capital-raising transactions, or from cash flow from operations. However, to attempt to mitigate credit risks, we will typically take a security interest in the available assets of these portfolio companies, including the equity interests of their subsidiaries and, in some cases, the equity interests of our portfolio

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companies held by their stockholders. In many cases, our loans will include a period of interest-only payments. There is a risk that the collateral securing our loans may decrease in value over time, may be difficult to sell in a timely manner, may be difficult to appraise and may fluctuate in value based upon the success of the business and market conditions, including as a result of the inability of a portfolio company to raise additional capital. In some circumstances, our lien could be subordinated to claims of other creditors. Additionally, a deterioration in a portfolio company’s financial condition and prospects, including its inability to raise additional capital, may be accompanied by a deterioration in the value of the collateral for the loan. Moreover, in the case of some of our structured mezzanine debt, we may not have a first lien position on the collateral. Consequently, the fact that a loan is secured does not guarantee that we will receive principal and interest payments according to the loan’s terms, or that we will be able to collect on the loan should we be forced to enforce our remedies. In addition, because we invest in technology-related companies, a substantial portion of the assets securing our investment may be in the form of intellectual property, if any, inventory and equipment and, to a lesser extent, cash and accounts receivable. Intellectual property, if any, that is securing our loan could lose value if, among other things, the company’s rights to the intellectual property are challenged or if the company’s license to the intellectual property is revoked or expires. Inventory may not be adequate to secure our loan if our valuation of the inventory at the time that we made the loan was not accurate or if there is a reduction in the demand for the inventory. Similarly, any equipment securing our loan may not provide us with the anticipated security if there are changes in technology or advances in new equipment that render the particular equipment obsolete or of limited value, or if the company fails to adequately maintain or repair the equipment. Any one or more of the preceding factors could materially impair our ability to recover principal in a foreclosure.

Our portfolio companies may incur debt that ranks equally with, or senior to, our investments in such companies.

We invest primarily in debt securities issued by our portfolio companies. In some cases, portfolio companies will be permitted to have other debt that ranks equally with, or senior to, the debt securities in which we invest. Such debt instruments may provide that the holders thereof are entitled to receive payment of interest or principal on or before the dates on which we are entitled to receive payments in respect of the debt securities in which we invest. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of debt instruments ranking senior to our investment in that portfolio company would typically be entitled to receive payment in full before we receive any distribution in respect of our investment. After repaying such senior creditors, such portfolio company might not have any remaining assets to use for repaying its obligation to us. In the case of debt ranking equally with debt securities in which we invest, we would have to share on a pari passu basis any distributions with other creditors holding such debt in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy. In addition, we would not be in a position to control any portfolio company by investing in its debt securities. As a result, we are subject to the risk that a portfolio company in which we invest may make business decisions with which we disagree and the management of such companies, as representatives of the holders of their common equity, may take risks or otherwise act in ways that do not best serve our interests as debt investors.

Our equity investments are highly speculative, and we may not realize gains from these investments. If our equity investments do not generate gains, then the return on our invested capital will be lower than it would otherwise be, which could result in a decline in the value of shares of our common stock.

When we invest in debt securities, we generally expect to acquire warrants or other equity securities as well. Our goal is ultimately to dispose of these equity interests and realize gains upon disposition of such interests. We cannot predict or control the timing of liquidity events of our portfolio companies. Over time, the gains that we realize on these equity interests may offset, to some extent, losses that we experience on defaults under debt securities that we hold. However, the equity interests that we receive may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests, and any gains that we do realize on the disposition of any equity interests may not be sufficient to offset any other losses that we experience.

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We do not control any of our portfolio companies and therefore our portfolio companies may make decisions with which we disagree.

We do not control any of our portfolio companies, even though we may have board observation rights and our debt agreements may contain certain restrictive covenants. As a result, we are subject to the risk that a portfolio company in which we invest may make business decisions with which we disagree and the management of such company, as representatives of the holders of their common equity, may take risks or otherwise act in ways that do not serve our interests as debt investors.

Prepayments of our debt investments by our portfolio companies could adversely impact our results of operations and reduce our return on equity.

We are subject to the risk that the investments we make in our portfolio companies may be repaid prior to maturity. When this occurs, we will generally reinvest these proceeds in temporary investments, pending their future investment in new portfolio companies. These temporary investments will typically have substantially lower yields than the debt being prepaid and we could experience significant delays in reinvesting these amounts. Any future investment in a new portfolio company may also be at lower yields than the debt that was repaid. As a result, our results of operations could be materially adversely affected if one or more of our portfolio companies elects to prepay amounts owed to us. Additionally, prepayments could negatively impact our return on equity, which could result in a decline in the market price of our common stock.

We may not realize gains from our equity investments.

When we invest in debt securities, we generally expect to acquire warrants or other equity securities as well. However, the equity interests we receive may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests, and any gains that we do realize on the disposition of any equity interests may not be sufficient to offset any other losses we experience.

Our financial results could be negatively affected if we are unable to recover our principal investment as a result of a negative pledge on the intellectual property of our portfolio companies.

In some cases, we collateralize our investments by obtaining a first priority security interest in a portfolio companies’ assets, which may include their intellectual property. In other cases, we may obtain a first priority security interest in a portion of a portfolio company’s assets and a negative pledge covering a company’s intellectual property and a first priority security interest in the proceeds from such intellectual property. In the case of a negative pledge, the portfolio company cannot encumber or pledge their intellectual property without our permission. In the event of a default on a loan, the intellectual property of the portfolio company will most likely be liquidated to provide proceeds to pay the creditors of the company. As a result, a negative pledge may affect our ability to fully recover our principal investment. In addition, there can be no assurance that our security interest in the proceeds of the intellectual property will be enforceable in a court of law or bankruptcy court.

At December 31, 2007, approximately 50% of our portfolio company loans were secured by a first priority security in all of the assets of the portfolio company and 50% portfolio company loans were prohibited from pledging or encumbering their intellectual property pursuant to negative pledges.

We may choose to waive or defer enforcement of covenants in the debt securities held in our portfolio, which may cause us to lose all or part of our investment in these companies.

We structure the debt investments in our portfolio companies to include business and financial covenants placing affirmative and negative obligations on the operation of the company’s business and its financial condition. However, from time to time we may elect to waive breaches of these covenants, including our right to payment, or waive or defer enforcement of remedies, such as acceleration of obligations or foreclosure on collateral, depending upon the financial condition and prospects of the particular portfolio company. These actions may reduce the likelihood of our receiving the full amount of future payments of interest or principal and

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be accompanied by a deterioration in the value of the underlying collateral as many of these companies may have limited financial resources, may be unable to meet future obligations and may go bankrupt. This could negatively impact our ability to pay dividends and cause the loss of all or part of your investment.

Risks Related to an Offering of Our Shares

Our common stock price may be volatile and may decrease substantially.

The trading price of our common stock following an offering may fluctuate substantially. The price of the common stock that will prevail in the market after an offering may be higher or lower than the price you paid and the liquidity of our common stock may be limited, in each case depending on many factors, some of which are beyond our control and may not be directly related to our operating performance. These factors include, but are not limited to, the following:

In the past, following periods of volatility in the market price of a company’s securities, securities class action litigation has often been brought against that company. Due to the potential volatility of our stock price, we may be the target of securities litigation in the future. Securities litigation could result in substantial costs and could divert management’s attention and resources from our business.

We may be unable to invest the net proceeds raised from an offering on acceptable terms, which would harm our financial condition and operating results.

Until we identify investments for our portfolio, we intend to invest the net proceeds from an offering in cash, cash equivalents, U.S. government securities or high-quality debt securities. We cannot assure you that we will be able to complete investments that meet our investment criteria or that any investment we complete using the proceeds from an offering will produce a sufficient return. Moreover, because we may not have identified all investments at the time of an offering, we will have broad authority to invest the net proceeds of an offering. We will not receive any proceeds from an offering by the selling holders.

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Investing in shares of our common stock may involve an above average degree of risk.

The investments we make in accordance with our investment objective may result in a higher amount of risk, volatility or loss of principal than alternative investment options. Our investments in portfolio companies may be highly speculative and aggressive, and therefore, an investment in our common stock may not be suitable for investors with lower risk tolerance.

We cannot assure you that the market price of our common stock will not decline.

We cannot predict the price at which our common stock will trade. Shares of closed-end investment companies have in the past frequently traded at discounts to their net asset values and our stock may also be discounted in the market. This characteristic of closed-end investment companies is separate and distinct from the risk that our net asset value per share may decline. We cannot predict whether shares of our common stock will trade above, at or below our net asset value. The risk of loss associated with this characteristic of closed-end investment companies may be greater for investors expecting to sell shares of common stock purchased in this offering soon after the offering. In addition, if our common stock trades below its net asset value, we will generally not be able to issue additional shares of our common stock at its market price without first obtaining the approval for such issuance from our stockholders and our independent directors.

Provisions of the Maryland General Corporation Law, and of our charter and bylaws, could deter takeover attempts and have an adverse impact on the price of our common stock.

The Maryland General Corporation Law and our charter and bylaws contain provisions that may have the effect of discouraging, delaying, or making difficult a change in control of our company or the removal of our incumbent directors. We will be covered by the Business Combination Act of the Maryland General Corporation Law to the extent that such statute is not superseded by applicable requirements of the 1940 Act. However, our Board of Directors has adopted a resolution exempting from the Business Combination Act any business combination between us and any person to the extent that such business combination receives the prior approval of our board, including a majority of our directors who are not interested persons as defined in the 1940 Act. Our Board of Directors has already adopted a resolution exempting from the Business Combination Act any business combination between us and certain investment funds managed by JMP Asset Management, LLC and certain investment funds managed by Farallon Capital Management, L.L.C., and we have agreed with such investment funds that we will not alter or repeal such board resolution prior to the date that is two years after such investment funds cease to own at least 10% of our outstanding common stock in a manner that would make the Business Combination Act applicable to acquisitions of our stock by such investment funds without the written consent of such investment funds. In addition, our bylaws contain a provision exempting from the Control Share Acquisition Act any and all acquisitions by any person of shares of our stock. We have agreed with certain investment funds managed by JMP Asset Management, LLC and certain investment funds managed by Farallon Capital Management, L.L.C. that we will not repeal or amend such provision of our bylaws in a manner that would make the Control Share Acquisition Act applicable to acquisitions of our stock by such investment funds without the written consent of such investment funds prior to the date that is two years after such investment funds cease to own at least 10% of our outstanding common stock. If the applicable board resolution is repealed following such period of time or if our board does not otherwise approve a business combination, the Business Combination Act and the Control Share Acquisition Act (if we amend our bylaws to be subject to that Act) may discourage others from trying to acquire control of us and increase the difficulty of consummating any offer.

Under our charter, our Board of Directors is divided into three classes serving staggered terms, which will make it more difficult for a hostile bidder to acquire control of us. In addition, our Board of Directors may, without stockholder action, authorize the issuance of shares of stock in one or more classes or series, including preferred stock. See “Description of Capital Stock.” Subject to compliance with the 1940 Act, our Board of Directors may, without stockholder action, amend our charter to increase the number of shares of stock of any class or series that we have authority to issue. The existence of these provisions, among others, may have a negative impact on the price of our common stock and may discourage third party bids for ownership of our company. These provisions may prevent any premiums being offered to you for shares of our common stock.

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FORWARD-LOOKING STATEMENTS; MARKET DATA

The matters discussed in this prospectus, as well as in future oral and written statements by management of Hercules Technology Growth Capital, that are forward-looking statements are based on current management expectations that involve substantial risks and uncertainties which could cause actual results to differ materially from the results expressed in, or implied by, these forward-looking statements. Forward-looking statements relate to future events or our future financial performance. We generally identify forward-looking statements by terminology such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “could,” “intends,” “target,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential” or “continue” or the negative of these terms or other similar words. Important assumptions include our ability to originate new investments, achieve certain margins and levels of profitability, the availability of additional capital, and the ability to maintain certain debt to asset ratios. In light of these and other uncertainties, the inclusion of a projection or forward-looking statement in this prospectus should not be regarded as a representation by us that our plans or objectives will be achieved. The forward-looking statements contained in this prospectus include statements as to:

For a discussion of factors that could cause our actual results to differ from forward-looking statements contained in this prospectus, please see the discussion under “Risk Factors.” You should not place undue reliance on these forward-looking statements. The forward-looking statements made in this prospectus relate only to events as of the date on which the statements are made. We undertake no obligation to update any forward-looking statement to reflect events or circumstances occurring after the date of this prospectus.

This prospectus contains third-party estimates and data regarding valuations of venture capital-backed companies. This data was reported by Dow Jones VentureOne, an independent venture capital industry research company which we refer to as VentureOne. VentureOne is commonly relied upon as an information source in the venture capital industry. Although we have not independently verified any such data, we believe that the industry information contained in such releases and data tables and included in this prospectus is reliable.

We have compiled certain industry estimates presented in this prospectus from internally generated information and data. While we believe our estimates are reliable, they have not been verified by any independent sources. The estimates are based on a number of assumptions, including increasing investment in venture capital and private equity-backed companies. Actual results may differ from projections and estimates, and this market may not grow at the rates projected, or at all. If this market fails to grow at projected rates, our business and the market price of our common stock could be materially adversely affected.

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USE OF PROCEEDS

We intend to use the net proceeds from selling shares of common stock for general corporate purposes, which include investing in debt and equity securities, repayment of indebtedness and other general corporate purposes. The supplement to this prospectus relating to an offering will more fully identify the use of proceeds from such offering. We will not receive any proceeds from the sale of common stock by the selling stockholders.

We anticipate that substantially all of the net proceeds from any offering of our shares of common stock will be used as described above within twelve months, but in no event longer than two years. Pending such uses and investments, we will invest the net proceeds primarily in cash, cash equivalents, U.S. government securities or high-quality debt securities maturing in one year or less from the time of investment. Our ability to achieve our investment objective may be limited to the extent that the net proceeds of any offering, pending full investment, are held in lower yielding short-term instruments.

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PRICE RANGE OF COMMON STOCK AND DISTRIBUTIONS

Our common stock is traded on the Nasdaq Global Select Market under the symbol “HTGC.” We completed the initial public offer of our common stock in June 2005 at a price of $13.00 per share. Prior to such date, there was no public market for our common stock.

The following table sets forth the range of high and low sales prices of our common stock as reported on the Nasdaq Global Select Market and the dividends declared by us for each fiscal quarter since our initial public offer. The stock quotations are interdealer quotations and do not include markups, markdowns or commissions.

The last reported price for our common stock on April 15, 2008 was $10.53 per share.

Shares of business development companies may trade at a market price that is less than the value of the net assets attributable to those shares. The possibility that our shares of common stock will trade at a discount from net asset value or at premiums that are unsustainable over the long term are separate and distinct from the risk that our net asset value will decrease. At times, our shares of common stock have traded at a premium to net asset value and at times our shares of common stock have traded at a discount to the net assets attributable to those shares. It is not possible to predict whether the shares offered hereby will trade at, above, or below net asset value.

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Dividends

The following table summarizes our dividends declared and paid on all shares, including restricted stock, to date:

Distributions in excess of our current and accumulated earnings and profits would be treated first as a return of capital to the extent of the stockholder’s tax basis, and any remaining distributions would be treated as a capital gain. The determination of the tax attributes of our distributions is made annually as of the end of our fiscal year based upon its taxable income for the full year and distributions paid for the full year, therefore a determination made on a quarterly basis may not be representative of the actual tax attributes of our distributions for a full year. During 2007, we distributed $1.20 per share to our shareholders of which 100% was deemed to be a distribution of income and is considered ordinary income to our shareholders in 2007.

We intend to distribute quarterly dividends to our stockholders. In order to avoid certain excise taxes imposed on RICs, we currently intend to distribute during each calendar year an amount at least equal to the sum of (1) 98% of our ordinary income for the calendar year, (2) 98% of our capital gains in excess of capital losses for the one year period ending on October 31 of the calendar year, and (3) any ordinary income and net capital gains for the preceding year that were not distributed during such year. We will not be subject to excise taxes on amounts on which we are required to pay corporate income tax (such as retained net capital gains). In order to obtain the tax benefits applicable to RICs, we will be required to distribute to our stockholders with respect to each taxable year at least 90% of our ordinary income and realized net short-term capital gains in excess of realized net long-term capital losses.

We currently intend to retain for investment some or all of our net capital gains (that is, the excess of our realized net long-term capital gains over our realized net short-term capital losses) and to make deemed distributions to our stockholders of any retained net capital gains. If this happens, you will be treated as if you received an actual distribution of the capital gains we retain and then reinvested the net after-tax proceeds in our common stock. You also may be eligible to claim a tax credit (or, in certain circumstances, a tax refund) equal to your allocable share of the tax we paid on the capital gains deemed distributed to you. Please refer to “Certain United States Federal Income Tax Considerations” for further information regarding the consequences of our retention of net capital gains. To the extent that we do not retain all of our net capital gains, we will make actual distributions to our stockholders of such gains.

We can offer no assurance that we will achieve results that will permit the payment of any cash distributions and, if we issue senior securities, we will be prohibited from making distributions if doing so causes us to fail to maintain the asset coverage ratios stipulated by the 1940 Act or if distributions are limited by the terms of any of our borrowings. See “Regulation.”

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We maintain an “opt-out” dividend reinvestment plan for our common stockholders. As a result, if we declare a dividend, cash dividends will be automatically reinvested in additional shares of our common stock unless the stockholder specifically “opts out” of the dividend reinvestment plan and chooses to receive cash dividends. See “Dividend Reinvestment Plan.”

Our ability to make distributions will be limited by the asset coverage requirements under the 1940 Act. For a more detailed discussion, see “Regulation.”

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion should be read in conjunction with our consolidated financial statements and related notes and other financial information appearing elsewhere in this report. In addition to historical information, the following discussion and other parts of this report contain forward-looking information that involves risks and uncertainties. Our actual results could differ materially from those anticipated by such forward-looking information due to the factors discussed under “Risk Factors” and “Forward-Looking Statements; Market Data” appearing elsewhere herein.

Overview

We are a specialty finance company that provides debt and equity growth capital to technology-related and life-science companies at all stages of development from seed and emerging growth to expansion and established stages of development. We primarily finance privately-held companies backed by leading venture capital and private equity firms, and may also finance select publicly listed companies and lower middle market companies. As of March 31, 2008, over 300 different venture capital firms sponsor our portfolio companies.

Our principal office is located in the Silicon Valley and we have additional offices in the Boston, Boulder, Chicago, Columbus and San Diego areas. Our goal is to be the leading structured mezzanine capital provider of choice for venture capital and private equity backed technology-related companies requiring sophisticated and customized financing solutions. Our strategy is to evaluate and invest in a broad range of companies active in the technology and life science industries and to offer a full suite of growth capital products up and down the capital structure. We invest primarily in structured mezzanine debt and, to a lesser extent, in senior debt and equity investments. We use the term “structured mezzanine debt investment” to refer to any debt investment, such as a senior or subordinated secured loan, that is coupled with an equity component, including warrants, options or rights to purchase common or preferred stock. Our structured mezzanine debt investments will typically be secured by some or all of the assets of the portfolio company.

Our investment objective is to maximize our portfolio total return by generating current income from our debt investments and capital appreciation from our equity-related investments. We are an internally managed, non-diversified closed-end investment company that has elected to be regulated as a business development company under the 1940 Act. As a business development company, we are required to comply with certain regulatory requirements. For instance, we generally have to invest at least 70% of our total assets in “qualifying assets,” including securities of private U.S. companies, cash, cash equivalents, U.S. government securities and high-quality debt investments that mature in one year or less.

From incorporation through December 31, 2005, we were taxed as a corporation under Subchapter C of the Code. We are treated for federal income tax purposes as a RIC under Subchapter M of the Code as of January 1, 2006. To qualify for the benefits allowable to a RIC, we must, among other things, meet certain source-of-income and asset diversification and income distribution requirements. Pursuant to this election, we generally will not have to pay corporate-level taxes on any income that we distribute to our stockholders. However, such an election and qualification to be treated as a RIC requires that we comply with certain requirements contained in Subchapter M of the Code. For example, a RIC must meet certain requirements, including source-of-income, asset diversification and income distribution requirements. The income source requirement mandates that we receive 90% or more of our income from qualified earnings, typically referred to as “good income.” Qualified earnings may exclude such income as management fees received in connection with our SBIC or other potential outside managed funds and certain other fees.

Our portfolio is comprised of, and we anticipate that our portfolio will continue to be comprised of, investments primarily in technology-related companies at various stages of their development. Consistent with regulatory requirements, we invest primarily in United States based companies and to a lesser extent in foreign companies. During 2007, our investing emphasis has been primarily on private companies following or in

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connection with a subsequent institutional round of equity financing, which we refer to as expansion-stage companies and private companies in later rounds of financing and certain public companies, which we refer to as established-stage companies. We have also historically focused our investment activities in private companies following or in connection with the first institutional round of financing, which we refer to as emerging-growth companies.

Asset Management

We may engage in the asset management business by providing investment advisory services to funds that may be formed in the future. We may, from time to time, serve as the investment manager of such funds and may receive management and other fees for such services. Such funds may have overlapping investment objectives and may invest in asset classes similar to those targeted by us.

Portfolio and Investment Activity

The total value of our investment portfolio was $530.0 million at December 31, 2007, as compared to $283.2 million at December 31, 2006. During the year ended December 31, 2007, we made debt commitments to 49 portfolio companies totaling $480.5 million and funded $355.5 million to 86 companies. We also made equity investments in 17 portfolio companies totaling $12.6 million during the year ended December 31, 2007. During the year ended December 31, 2007, we also converted approximately $4.8 million of debt to equity in two portfolio companies, bringing total equity investments at fair value to approximately $26.2 million at December 31, 2007. The fair value of our warrant portfolio at December 31, 2007 and 2006, was $21.6 million and $8.4 million respectively. At December 31, 2007, we had unfunded contractual commitments of $130.6 million to 29 portfolio companies. In addition, we executed non-binding term sheets totaling $36 million for proposed future commitments.

We receive payments in our loan portfolio based on scheduled amortization of the outstanding balances. In addition, we receive repayments of some of our loans prior to their scheduled maturity date. The frequency or volume of these repayments may fluctuate significantly from period to period. During the year ended December 31, 2007, we received normal principal repayments of $66.5 million, and early repayments and working line of credit paydowns totaling 62.2 million. Total portfolio investment activity (exclusive of unearned income) as of and for each of the years ended December 31, 2007 and 2006 was as follows:

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The following table shows the fair value of our portfolio of investments by asset class as of December 31, 2007 and December 31, 2006 (excluding unearned income):

A summary of the company’s investment portfolio at value by geographic location is as follows:

Our portfolio companies are primarily privately held expansion-and established-stage companies in the biopharmaceutical, communications and networking, consumer and business products, electronics and computers, energy, information services, internet consumer and business services, medical devices, semiconductor and software industry sectors. These sectors are characterized by high margins, high growth rates, consolidation and product and market extension opportunities. Value is often vested in intangible assets and intellectual property.

The largest companies vary from year to year as new loans are recorded and loans pay off. Loan revenue, consisting of interest, fees, and recognition of gains on equity interests, can fluctuate dramatically when a loan is paid off or a related equity interest is sold. Revenue recognition in any given year can be highly concentrated among several portfolio companies. For years ended December 31, 2007 and 2006, our ten largest portfolio companies represented approximately 33.7% and 43.4% of the total fair value of our investments, respectively. At December 31, 2007 and 2006, we had three and four investments, respectively, that represented 5% or more of the fair value of our investments. At December 31, 2007, we had five equity investments representing approximately 50.0% of the total fair value of our equity investments, and each represented 5% or more of the total fair value of such investments. At December 31, 2006, we had eleven equity investments which represented 100% of the total fair value of its equity investments, and each represented 5% or more of the total fair value of such investments.

At December 31, 2007, we had investments in two portfolio companies deemed to be Affiliates. One investment is a non-income producing equity investment and one portfolio company became an Affiliate on December 17, 2007 upon a restructure of the company. Income derived from these investments was less than $8,000 since these investments became Affiliates. At December 31, 2006, none of the Company’s investments were deemed to be Affiliates. No realized gains or losses related to Affiliates were recognized during the years end December 31, 2007, 2006 or 2005.

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The following table shows the fair value of our portfolio by industry sector at December 31, 2007 and December 31, 2006 (excluding unearned income):

We use an investment grading system, which grades each debt investment on a scale of 1 to 5, to characterize and monitor our expected level of returns on the debt investments in our portfolio with 1 being the highest quality. See “Business—Investment Process—Loan and Compliance Administration.” The following table shows the distribution of our outstanding debt investments on the 1 to 5 investment grading scale at fair value as of December 31, 2007 and December 31, 2006:

As of December 31, 2007, our investments had a weighted average investment grading of 2.20 as compared to 2.14 at December 31, 2006. Our policy is to lower the grading on our portfolio companies as they approach the point in time when they will require additional equity capital. Additionally, we may downgrade our portfolio companies if they are not meeting our financing criteria and their respective business plans. Various companies in our portfolio will require additional funding in the near term or have not met their business plans and have therefore been downgraded until their funding is complete or their operations improve. At December 31, 2007, 15 portfolio companies were graded 3 and three portfolio companies were graded 4, as compared to eight and three portfolio companies, respectively, at December 31, 2006.

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We target total returns on our debt investments, including warrant gains, of between 20% and 35%, and target an annual investment yield on debt investments ranging from 11% to 15%, excluding warrants. The effective yield on our debt investments during the year was 12.8% and was attributed in part to interest charges and fees related to loan restructurings and acceleration of fee income recognition from early loan repayments. The overall weighted average yield to maturity of our loan obligations was approximately 12.70% at December 31, 2007, increased slightly compared to 12.64% at December 31, 2006, attributed to increased investments to both expansion- and established-stage companies and asset based financing offered to more mature companies seeking revolver type financing solutions. The weighted average yield to maturity is computed using the interest rates in effect at the inception of each of the loans, and includes amortization of the loan facility fees, commitment fees and market premiums or discounts over the expected life of the debt investments, weighted by their respective costs when averaged and based on the assumption that all contractual loan commitments have been fully funded and held to maturity.

We generate revenue in the form of interest income, primarily from our investments in debt securities, and commitment and facility fees. Fees generated in connection with our debt investments are recognized over the life of the loan or, in some cases, recognized as earned. In addition, we generate revenue in the form of capital gains, if any, on warrants or other equity-related securities that we acquire from our portfolio companies. Our investments generally range from $1.0 million to $30.0 million, with an average initial principal balance of between $1.0 million and $15.0 million. We typically charge our portfolio companies facility fees ranging between 0.5% and 2.5% of committed capital. Our debt investments have a term of between two and seven years and typically bear interest at a rate ranging from Prime rate to 14.0% (based on current interest rate conditions). In addition to the cash yields received on our loans, in some instances, our loans may also include any of the following: end-of-term payments, exit fees, balloon payment fees, PIK provisions, prepayment fees, and diligence fees, which may be required to be included in income prior to receipt. Back-end fees charged are generally up to 10% of the committed capital amount of a loan.

With our debt investments, we typically secure the right to co-invest in the next equity financing round of our portfolio companies. In most cases, we collateralize our investments by obtaining security interests in our portfolio companies’ assets, which may include their intellectual property. In other cases, we may obtain a negative pledge covering a company’s intellectual property. At December 31, 2007, approximately 35 portfolio company loans were secured by a first priority security in all of the assets of the portfolio company and 42 portfolio company loans were prohibited from pledging or encumbering their intellectual property. Interest on debt securities is generally payable monthly, with amortization of principal typically occurring over the term of the security for emerging-growth, expansion-stage and established-stage companies. In addition, certain loans may include an interest-only period ranging from three to eighteen months for emerging-growth and expansion-stage companies and longer for established-stage companies. In limited instances in which we choose to defer amortization of the loan for a period of time from the date of the initial investment, the principal amount of the debt securities and any accrued but unpaid interest become due at the maturity date.

Our mezzanine debt investments also generally have equity enhancement features, typically in the form of warrants or other equity-related securities designed to provide us with an opportunity for capital appreciation. As of December 31, 2007, we have received warrants in connection with the majority of our debt investments in each portfolio company, and have realized gains on ten warrant positions since inception. Our warrant coverage generally ranges from 3% to 20% of the principal amount invested in a portfolio company, with a strike price equal to the most recent equity financing round. We currently hold warrants in 82 portfolio companies, with a fair value of approximately $21.6 million included in the investment portfolio of $530.0 million. The fair value of the warrant portfolio has increased by 156% as compared to the fair value of $8.4 million at December 31, 2006. These warrant holdings would allow us to invest approximately $50 million if such warrants are exercised. However, these warrants may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our warrant interests.

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Results of Operations

Comparison of periods ended December 31, 2007 and 2006

Operating Income

Interest income totaled approximately $48.8 million and $26.3 million for 2007 and 2006, respectively. The increase in interest income was directly related to increases in origination activity as net investments at fair value grew by $246.8 million during 2007. In 2007 and 2006, interest income included approximately $1.8 million and $713,000 of income from accrued exit fees. Income from commitment, facility and loan related fees totaled approximately $5.1 million and $3.2 million for 2007 and 2006, respectively. At December 31, 2007 and 2006, we had approximately $6.6 million and $3.5 million of deferred income related to commitment and facility fees, respectively.

Operating Expenses

Operating expenses totaled approximately $21.4 million and $18.4 million during 2007 and 2006, respectively. Operating expenses for the years ended December 31, 2007 and 2006 included interest expense, loan fees and unused commitment fees of approximately $5.7 million and $6.6 million, respectively. The 13.5% decrease in interest expense was primarily due to a lower average debt balance of $66.3 million in 2007 as compared to $70.7 million in 2006. The weighted average cost of debt was approximately 6.5% at December 31, 2007 as compared to 6.7% at December 31, 2006 which primarily reflects a lower LIBOR rate under our Credit Facility. Employee compensation and benefits were approximately $9.1 million and $5.8 million during 2007 and 2006, respectively. The increase in employee compensation and benefits is due to increased number of employees from 26 to 38 and bonuses of approximately $3.7 million accrued in 2007 as compared to an accrual of $2.2 million in 2006. General and administrative expenses include legal and accounting fees, insurance premiums, rent and various other expenses totaling $5.4 million in both 2007 and 2006. We incurred approximately $1.1 million of stock-based compensation expense in 2007 as compared to $618,000 in 2006 due to additional option grants made in 2007. We anticipate that operating expenses will increase over the next twelve months as we continue to incur higher interest expense on higher average outstanding debt balances, increase the number of our employees to support our growth and incur additional expenses related to being a public company, including expenses related to continued compliance requirements under the Sarbanes-Oxley Act.

Net Investment Income Before Income Tax Expense and Investment Gains and Losses

Net investment income before income tax expense for the year ended December 31, 2007 totaled $32.5 million as compared with a net investment income before income tax expense in 2006 of approximately $11.1 million. The changes are made up of the items described above under “Operating Income” and “Operating Expenses.”

Net Investment Realized Gains and Losses and Unrealized Appreciation and Depreciation

Realized gains or losses are measured by the difference between the net proceeds from the repayment or sale and the cost basis of the investment without regard to unrealized appreciation or depreciation previously recognized, and include investments charged off during the period, net of recoveries. Net change in unrealized appreciation or depreciation primarily reflects the change in portfolio investment values during the reporting period, including the reversal of previously recorded unrealized appreciation or depreciation when gains or losses are realized.

In 2007, we generated realized gains totaling approximately $3.6 million from the sale of common stock of two communications and networking companies, two internet consumer and business services companies and three biopharmaceutical companies. We recognized realized losses in 2007 of approximately $800,000 on the

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disposition of warrants in six portfolio companies. We recognized a realized gain of approximately $3.3 million during the year ended December 31, 2006 from the sale of common stock of one communications and networking company, one internet consumer and business services company and two biopharmaceutical companies. We recognized realized losses in 2006 of approximately $4.9 million on the disposition of loans to two portfolio companies. A summary of realized and unrealized gains and losses for the years end December 31, 2007 and 2006 is as follows:

For the years ended December 31, 2007 and 2006, net unrealized investment appreciation totaled approximately $7.3 million and $2.5 million, respectively. The year to year increase is primarily attributable to the increased number of companies in the portfolio. The net unrealized appreciation and depreciation of investments is based on portfolio asset valuations determined in good faith by our Board of Directors. As of December 31, 2007, the net unrealized investment appreciation recognized by the company was reduced by approximately $690,000 for a warrant participation agreement with Citigroup. For a more detailed discussion, see the discussion set forth under “Borrowings” below. The following table itemizes the change in net unrealized appreciation (depreciation) of investments for 2007 and 2006:

During 2007, we achieved thirteen liquidity events from our portfolio companies. Ten portfolio companies were acquired and three portfolio companies completed initial public offerings.

Income and Excise Taxes

We account for income taxes in accordance with the provisions of Statement of Financial Accounting Standards No. 109, Accounting for Income Taxes, which requires that deferred income taxes be determined based upon the estimated future tax effects of differences between the financial statement and tax basis of assets and liabilities given the provisions of the enacted tax law. Valuation allowances are used to reduce deferred tax assets to the amount likely to be realized.

Through December 31, 2005 we were taxed under Subchapter C of the Code. We elected to be treated as a RIC under Subchapter M of the Code with the filing of our 2006 federal income tax return. Provided we continue to qualify as a RIC, our income generally will not be subject to federal income or excise taxes to the extent we make the requisite distributions to stockholders. At December 31, 2007, we elected to pay an excise tax of approximately $139,000 on approximately $4.3 million of undistributed earnings from operations and capital gains that we intend to distribute in 2008. See “Business—Certain United States Federal Income Tax Considerations.”

During 2007, we distributed $1.20 per share to our shareholders, of which 100% was deemed to be a distribution of income and is considered ordinary income to our shareholders in 2007.

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Net Increase in Net Assets Resulting from Operations and Earnings Per Share

For the year ended December 31, 2007 net income totaled approximately $42.4 million compared to net income of approximately $11.4 million for the period ended December 31, 2006. These changes are made up of the items previously described.

Basic and fully diluted net income per share was $1.50 and $1.49, respectively, for the year ended December 31, 2007, compared to basic net income per share of $0.85 and fully diluted net income per share of $0.84 for the year ended December 31, 2006.

Comparison of periods ended December 31, 2006 and 2005

Operating Income

Interest income totaled approximately $26.3 million and $9.8 million for 2006 and 2005, respectively. In 2006 and 2005, interest income included approximately $713,000 and $351,000 of income from accrued exit fees, respectively. Income from commitment and facility fees totaled approximately $3.2 million and $876,000 for 2006 and 2005, respectively. The increase in both interest and fee income was directly related to increases in origination activity, as net investments at fair value grew by $106.5 million during 2006. At December 31, 2006 and 2005, we had approximately $3.4 million and $2.7 million of deferred income related to commitment and facility fees.

Operating Expenses

Operating expenses totaled approximately $18.4 million and $9.1 million during 2006 and 2005, respectively. Operating expenses for 2006 and 2005 included interest expense, loan fees and unused commitment fees under our Bridge Loan Credit Facility and the Credit Facility of approximately $6.6 million and $2.9 million, respectively. The increase in interest expense was due to a higher average debt balance of $70.7 million in 2006, as compared to $20.3 million in 2005. Employee compensation and benefits were approximately $5.8 million and $3.7 million during 2006 and 2005, respectively. The increase in employee compensation and benefits is due to an increased number of employees from 19 to 26, and bonuses of approximately $2.2 million accrued in 2006. General and administrative expenses increased to $5.4 million in 2006 from $2.3 million in 2005 primarily due to increased Board of Directors costs, legal expenses, professional service costs related to our status as a public company and the creation of our SBIC subsidiaries, as well as increased expenses associated with operating a business development company. In addition, we incurred approximately $618,000 of stock-based compensation expense in 2006 as compared to $252,000 in 2005. The increase in stock-based compensation expense was due to the additional stock option grants made in 2006.

Net Investment Income Before Income Tax Expense and Investment Gains and Losses

Net investment income before income tax expense for the year ended December 31, 2006 totaled $11.1 million as compared with a net investment income before income tax expense in 2005 of approximately $1.5 million. This change is made up of the items described above.

Net Investment Gains

In 2006, we generated realized gains totaling approximately $3.3 million from the sale of common stock of one communications and networking company, one internet consumer and business services company and two biopharmaceutical companies. We recognized realized losses in 2006 of approximately $4.9 million on the disposition of loans to two portfolio companies. We recognized a realized gain of approximately $482,000 during the year ended December 31, 2005 from the sale of common stock of one biopharmaceutical portfolio company. During 2006, we reversed approximately $162,000 of net unrealized appreciation to realized gains. For the year ended December 31, 2006, net unrealized investment appreciation totaled approximately $2.5 million. The net

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unrealized appreciation and depreciation of investments is based on portfolio asset valuations determined in good faith by our Board of Directors, based on the recommendations of the Valuation Committee. For the year ended December 31, 2006, we recognized approximately $4.9 million of gross unrealized appreciation on 11 of our portfolio companies and approximately $1.6 million of gross unrealized depreciation on 41 of our portfolio companies. As of December 31, 2006, the net unrealized investment appreciation recognized by the company was reduced by approximately $377,000 for a warrant participation agreement with Citigroup. For a more detailed discussion, see “Borrowings” below.

Income Taxes

Through December 31, 2005 we were taxed under Subchapter C of the Code and recorded a tax expense of $255,000 for 2005. We elected to be treated as a RIC under Subchapter M of the Code with the filing of our 2006 federal income tax return, which election was effective as of January 1, 2006. Provided we continue to qualify as a RIC, our income generally will not be subject to federal income or excise tax to the extent we make the requisite distributions to stockholders. We have distributed and currently intend to distribute sufficient dividends to eliminate our investment company taxable income for 2006. As such, no provision for Federal or state income taxes related to operations in 2006 was required. At December 31, 2005, the Company had a deferred tax asset of approximately $1,454,000, which was adjusted through operations during the first quarter of 2006. Upon the determination that Hercules would qualify as a regulated investment company, any remaining deferred tax asset was reversed. The Company elected to recognize all of its net built-in gains at the time of the conversion to a RIC and paid tax on the built-in gain with the filing of its 2005 tax return. In making this election, the portfolio was marked to market at the time of the RIC election and the Company paid approximately $294,000 in Federal and State tax on the resulting taxable gain. In addition, upon completion of the 2005 tax returns, we recorded an additional tax benefit of approximately $345,000. To qualify as a RIC we were required by December 31, 2006 to distribute our earnings and profits while we were taxable as a C corporation. During 2006, we distributed $1.20 per share to our shareholders of which approximately $0.09 was deemed to be a distribution of these accumulated earnings and profits, $0.97 was deemed to be a distribution of 2006 income and $0.14 was a return of capital. The distribution of our income and our accumulated earnings and profits is considered ordinary income to our shareholders in 2006.

Net Increase in Net Assets Resulting from Operations and Earnings Per Share

For the year ended December 31, 2006 net income totaled approximately $11.4 million, compared to net income of approximately $2.1 million for the period ended December 31, 2005. These changes are made up of the items previously described.

Basic net income per share was $0.85 and fully diluted net income per share was $0.84 per share for the year ended December 31, 2006, compared to basic and diluted net income per share of $0.30 per share for the period ended December 31, 2005. The net income per share for 2006 was affected by an increase in the weighted average shares outstanding of approximately 6.4 million shares and 6.5 million shares on a basic and diluted basis, respectively, as compared to 2005.

Financial Condition, Liquidity and Capital Resources

At December 31, 2007, we had approximately $7.9 million in cash and cash equivalents and available borrowing capacity of approximately $170.8 million under our Credit Facility and approximately $72.1 million available under the SBA program, subject to existing terms and advance rates. We primarily invest cash on hand in interest bearing deposit accounts.

For the year ended December 31, 2007, net cash used in operating activities totaled approximately $201.1 million as compared to $91.3 million in 2006. This increase was due primarily due to $368.1 million used for investments in our portfolio companies offset by proceeds of $128.7 million in principal repayments, as

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compared to $87.5 million in principal repayments offset by $196.0 million used for investments in 2006. Cash used in investing activities for the year ended December 31, 2007 totaled approximately $34,000 and was used for the purchase of capital equipment offset by a reduction in other long-term assets. Net cash provided by financing activities totaled $192.5 million for the year ended December 31, 2007. In 2007, we received approximately $131.4 million in net proceeds from the sale of common stock, and made cash dividend payments of $30.0 million. During the year ended December 31, 2007, we borrowed a net $38.2 million under our Credit Facility and borrowed $55.1 million of SBA debentures.

As of December 31, 2007, net assets totaled $400.7 million, with a net asset value per share of $12.31. We intend to generate additional cash primarily from equity capital, future borrowings as well as cash flows from operations, including income earned from investments in our portfolio companies and, to a lesser extent, from the temporary investment of cash in U.S. government securities and other high-quality debt investments that mature in one year or less. Our primary use of funds will be investments in portfolio companies and cash distributions to holders of our common stock. After we have used our current capital resources, we expect to raise additional capital to support our future growth through future equity offerings, issuances of senior securities and/or future borrowings, to the extent permitted by the 1940 Act.

As required by the 1940 Act, our asset coverage must be at least 200% after each issuance of senior securities. Our asset coverage as of December 31, 2007 was approximately 675%.

We anticipate that we will continue to fund our investment activities through a combination of debt and additional equity capital over the next year. As of December 31, 2007, we had $79.2 million outstanding under the Credit Facility and approximately $55.1 million under the SBA program. Through March 30, 2007, advances under the Credit Facility carried interest at one-month LIBOR plus 165 basis points. On March 30, 2007, the interest on all borrowings was reduced to LIBOR plus a spread of 1.20%. On May 2, 2007, we amended the Credit Facility to extend the expiration date to May 1, 2008, increased the borrowing capacity under the facility to $250 million, and included Deutsche Bank Securities Inc. as a participant along with Citigroup Markets Realty Corp. The credit facility is a one year facility and is renewable on May 1, 2008 with an interest rate of LIBOR plus a spread of 1.20%. We intend to initiate renewal negotiations on the Credit Facility in the first quarter of 2008. We paid a structuring fee of $375,000 which will be expensed ratably through maturity. As of December 31, 2007, there were $242.8 million of loans in the collateral pool and, based on eligible loans in the pool and existing advance rates, we have access to approximately $131.3 million of borrowing capacity available under our $250.0 million securitized credit facility. In addition, Citigroup has an equity participation right of 10% of the realized gains on warrants collateralized under the Credit Facility. However, no additional warrants are included in collateral subsequent to the facility amendment on May 2, 2007. See Note 3 to the consolidated financial statements for discussion of the participation right. We anticipate that portfolio fundings entered into in succeeding periods will allow us to utilize the full borrowing capacity of the Credit Facility.

At December 31, 2007 and December 31, 2006, we had the following borrowing capacity and outstandings:

On September 27, 2006, HT II received a license to operate as a Small Business Investment Company under the SBIC program and is able to borrow funds from the SBA against eligible previously approved investments and additional contributions to regulatory capital. On July 31, 2007, we received approval from the SBA to increase our leverage by approximately $77.0 million to a total of $127.2 million, subject to certain regulatory

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requirements. At December 31, 2007, we had a net investment of $63.6 million in HT II, and there are investments in 30 companies with a fair value of approximately $124.6 million. The Company is the sole limited partner of HT II and HTM is the general partner. HTM is a wholly-owned subsidiary of the Company.

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