PRESS RELEASE


HARRIS & HARRIS GROUP, INC. MARCH 7, 2005
111 WEST 57TH STREET
NEW YORK, NEW YORK 10019
NASDAQ/NMS SYMBOL: TINY
CONTACT: DOUGLAS W. JAMISON
TEL. NO. (212) 582-0900



HARRIS & HARRIS GROUP INVESTS IN NANOMIX


Harris & Harris Group, Inc., announced today that it has led an oversubscribed $16 million round of funding in Nanomix, Inc. Privately held Nanomix, based in Emeryville, California, is commercializing a line of nanoelectronic detection devices for industrial and biomedical applications, based on ultra-sensitive carbon nanotube networks.

STAR Ventures joined Harris & Harris Group as a new investor in Nanomix. Existing investors Alta Partners, Apax Partners, Sevin Rosen Funds and EnerTech Capital Partners also participated in the financing. Daniel V. Leff of Harris & Harris Group will join the Nanomix board of directors.

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 22 initial private equity investments have been in tiny-technology enabled companies.

Harris & Harris Group is a business development company with 17,248,845 common shares outstanding.

Detailed information about Harris & Harris Group and its holdings can be found on its website at www.TinyTechVC.com.



This news 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 new release. Please see the Company's Annual Report on Form 10-K 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.






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