Harris & Harris Group Inc.

PRESS RELEASE

HARRIS & HARRIS GROUP, INC.	MARCH 17, 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 INVESTS IN NEOPHOTONICS

Harris & Harris Group, Inc. announced today that it has invested $2 million in privately held NeoPhotonics Corporation (www.neophotonics.com), as part of a venture financing of more than $40 million led by Oak Investment Partners and Institutional Venture Partners (IVP). The other largest investors in the round include Draper Fisher Jurvetson (DFJ), ATA Ventures, Rockport Capital Partners, Ventana Global Capital, Linkmore Limited and Alps Information Technology Fund.

NeoPhotonics Corporation recently introduced a new suite of optical components for access networks. The company is a developer and manufacturer of silica integrated optical modules and systems for telecom, datacom, FTTP, CATV and other markets.

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 13 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.