Harris & Harris Group Inc.

PRESS RELEASE

HARRIS & HARRIS GROUP, INC.	JULY 18, 2003
ONE ROCKEFELLER PLAZA
NEW YORK, NEW YORK 10020
NASDAQ/NMS SYMBOL: TINY
CONTACT: MEL P. MELSHEIMER
TEL. NO. (212) 332-3614

HARRIS & HARRIS GROUP NOTES NANOGRAM DEVICES AGREEMENT WITH EAGLEPICHER

NanoGram Devices Corporation (www.nanogramdevices.com) announced that it has entered into a manufacturing agreement with EaglePicher, Inc., covering the manufacture of NanoGram Devices' nanomaterials-based medical power sources. The agreement also outlines plans for potential future collaboration on additional high-reliability batteries using NanoGram Devices' patented nanomaterials systems and technologies. EaglePicher is the largest manufacturer of high-reliability military and aerospace batteries and has also developed a number of medical batteries.

Harris & Harris Group, Inc. owns a 5.02 percent interest in privately held NanoGram Devices. NanoGram Devices is a nanotechnology company that develops and markets products for medical device applications based on a unique, patented nanomaterials synthesis process. The company's first commercial products, nanomaterials-enhanced power sources, enable smaller, longer lifetime, more reliable implantable medical devices such as ICD's (implantable cardioverter defibrillators).

Harris & Harris Group is a publicly traded venture capital company that now makes initial investments exclusively in tiny-technology enabled companies. Its last 11 private equity investments have been in such companies, including one which has not yet been announced.

Harris & Harris Group, Inc. is a Business Development Company with 11,498,845 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 Annual Report on Form 10-K and recent Prospectus 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.