Harris & Harris Group Inc.

PRESS RELEASE

HARRIS & HARRIS GROUP, INC.	JUNE 9, 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 AIR PRODUCTS AND CHEMICALS, INC. AND NANOTECHNOLOGIES, INC. JOINT DEVELOPMENT AND EQUITY INVESTMENT AGREEEMENT

Harris & Harris Group, Inc. announced today that it has invested $169,718 in the Series C Preferred round financing of Nanotechnologies, Inc. (www.nanoscale.com). This round of financing included a new investor, Air Products and Chemicals, Inc. (www.airproducts.com), in addition to previous investors in Nanotechnologies, Inc., including Harris & Harris Group. Harris & Harris Group has now invested a total of $919,718 in Nanotechnologies, Inc. and owns a fully diluted 6.48% interest in Nanotechnologies, Inc.

Nanotechnologies' proprietary pulsed plasma technology produces high-performance nanoparticles with applications in transparent coatings, anti-microbial products, and electronic materials, for example. In the past year, the company has focused on its unique ability to produce metal nanoparticles such as silver, aluminum and copper.

Shareholders of Harris & Harris Group may be interested also in reading today's press release from Air Products and Chemicals and Nanotechnologies, Inc. on this investment.

Harris & Harris Group is a publicly traded venture capital company that now makes initial investments exclusively in tiny technology, including microsystems, microelectromechanical systems (MEMS) and nanotechnology. The Company's last 10 initial private equity investments have been in tiny-technology enabled companies.

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.