Harris & Harris Group Inc.

PRESS RELEASE

HARRIS & HARRIS GROUP, INC.	AUGUST 3, 2005
111 WEST 57TH STREET
NEW YORK, NEW YORK 10019
NASDAQ/NMS SYMBOL: TINY
CONTACT: CHARLES E. HARRIS
TEL. NO. (212) 582-0900

HARRIS & HARRIS GROUP FILES SUPPLEMENT TO SHELF REGISTRATION TO OFFER 3,050,000 SHARES OF COMMON STOCK

Harris & Harris Group, Inc., today announced that it has filed a preliminary prospectus supplement to its shelf registration statement previously filed with the Securities and Exchange Commission relating to a proposed underwritten public offering of 3,050,000 shares of its common stock. Harris & Harris Group also expects to grant the underwriters an option to purchase an additional 457,500 shares of common stock to cover over-allotments, if any. All the shares are being sold by Harris & Harris Group.
ThinkEquity Partners LLC is acting as the sole book runner for the offering. Punk, Ziegel & Company, L.P. is acting as co-manager for the offering.

This communication shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.

Copies of the preliminary prospectus supplement, and the accompanying prospectus, may be obtained from ThinkEquity Partners LLC, 600 Montgomery Street, San Francisco, CA 94111 (Telephone number 415-249-2900) and Punk, Ziegel & Company, 520 Madison Avenue, 4th Floor, New York, NY 10022 (Telephone number 212-308-9494).

Harris & Harris Group is a publicly traded venture capital company that now makes initial investments exclusively in tiny technology, including nanotechnology, microsystems and microelectromechanical systems (MEMS). The Company's last 24 initial private equity investments have been in tiny-technology enabled companies. The Company currently has 17,248,845 common shares outstanding.

Detailed information about Harris & Harris Group, Inc., and its holdings can be found on its website at http://www.TinyTechVC.com.

This press release may contain statements of a forward-looking nature relating to future events. These forward-looking statements are subject to the inherent uncertainties in predicting future results and conditions. These statements reflect the Company's current beliefs, and a number of important factors could cause actual results to differ materially from those expressed in this press release. Please see the Company's Registration Statement on Form N-2 (File No. 333-112862) and Annual Report on Form 10-K for the fiscal year ended December 31, 2004, filed with the Securities and Exchange Commission for a more detailed discussion of the risks and uncertainties associated with the Company's business, including but not limited to the risks and uncertainties associated with venture capital investing and other significant factors that could affect the Company's actual results. Except as otherwise required by Federal securities laws, Harris & Harris Group, Inc.�, undertakes no obligation to update or revise these forward-looking statements to reflect new events or uncertainties. The reference to the website www.TinyTechVC.com has been provided as a convenience, and the information contained on such website is not incorporated by reference into this press release. The information in the prospectus supplement, and the accompanying 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.