Principal Financial and Accounting Officer pursuant to Section 1350

Exhibit 32.2

CERTIFICATION PURSUANT TO

SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES CODE,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to Section 1350, Chapter 63 of Title 18, United States Code, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned, as chief financial officer of Hercules Technology Growth Capital, Inc. (the “Company”), does hereby certify that to the undersigned’s knowledge:

1) the Company’s Form 10-Q for the three months ended June 30, 2005 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2) the information contained in the Company’s Form 10- Q for the three months ended June 30, 2005 fairly presents, in all material respects, the financial condition and results of operations of the Company.


Date: August 10, 2005	By:	/s/ David M. Lund
		David M. Lund
		Vice President of Finance and Senior Corporate Controller (Principal Financial and Accounting Officer)