SAN FRANCISCO, 17 June 2008 – ThinkPanmure LLC, the wholly owned US investment banking subsidiary of Panmure Gordon & Co, has acted as sole agent on the placement of 2,545,000 shares in nanotechnology investment company, Harris & Harris Group (NASDAQ: TINY), with institutional investors at $6.15. Head of investment banking at ThinkPanmure, Deborah Quazzo, said: “We are very pleased to have successfully managed this placement for an outstanding franchise client. “The transaction confirms that, even in difficult markets, there is investor appetite for high quality stocks and that ThinkPanmure is capable of enabling client success through our highly experienced brokerage and investment banking teams.” Further information US: Deborah Quazzo Head of Investment Banking, ThinkPanmure Tel: +1 312 201 3101 UK: Nathaniel Webb Global Communications Manager, Panmure Gordon Tel: +44 20 7614 8333 About ThinkPanmure, LLC ThinkPanmure, LLC is a leading growth-company focused investment bank headquartered in San Francisco. Research-led and employing approximately 180 finance professionals in offices in San Franciso, New York, Boston, Minneapolis and Chicago as well as a representative office in Nyon, Switzerland. The firm is now part of the Panmure Gordon Group. www.thinkpanmure.com About the Panmure Gordon Group Founded in 1876, Panmure Gordon & Co (PMR.L) is a leading independent mid-cap investment bank based in London. Encompassing its US franchise, ThinkPanmure LLC, the Group employs approximately 300 professionals across the US, the UK and Nyon, Switzerland, offering a blend of transatlantic financial services including research, sales and trading, wealth management and asset management.