Neil Gagnon founded Gagnon Securities LLC in January 2000 and is the Managing Member. He is also the Portfolio Manager of the Gagnon Securities Partners Fund LLC, the Manager of Gagnon Investment Associates LLC, and the Managing Member of Gagnon Advisors, LLC, the Investment Manager of Gagnon Investment Associates Offshore Ltd. and GIS Fund of Funds LLC. Neil is also a principal decision-maker of GagnonLee Management, LLC. Neil was previously a Senior Partner at Gilder, Gagnon, Howe & Co. for over twenty-five years, after joining the firm in 1974 as an analyst and portfolio manager. Prior to this, he was an early partner at Hambrecht & Quist, a West Coast investment banking firm.