Harris & Harris Group Inc.

PRESS RELEASE

HARRIS & HARRIS GROUP, INC.	APRIL 23, 2004
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 NOTES FILING OF S-1 REGISTRATION STATEMENT BY NANOSYS, INC.

Harris & Harris Group, Inc., noted that, after the close of business yesterday, Nanosys, Inc., filed an S-1 Registration Statement to sell shares of common stock. The proposed offering is to be underwritten by Merrill Lynch & Co., Lehman Brothers, CIBC World Markets and Needham & Company, Inc.

This press release by Harris & Harris Group, Inc., does not constitute an offering, which will be made only by the prospectus.

Harris & Harris Group owns a 1.55 % fully diluted interest in Nanosys, Inc. for which it paid $1.5 million in April 2003.

Harris & Harris Group is a publicly traded venture capital company that makes initial investments exclusively in tiny technology, including nanotechnology, microsystems and microelectromechanical systems (MEMS). The Company's last 14 initial private equity investments have been in tiny-technology enabled companies. The Company has 13,798,845 common shares outstanding.

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