
Founded Seed One in 1997 and has started more than a dozen companies, from Avigen to Scorpius.
Jeff has started more than a dozen companies based upon breakthrough research and technology. Jeff was formerly managing director at The Castle Group, a New York based venture firm focused on starting new companies based on breakthrough technologies. Jeff founded Seed One in 1997 to focus on identifying and acquiring cutting-edge technologies and systematically forming and running early-stage, high-growth companies based on these breakthroughs.
Since founding Seed One, Jeff has created and run over a dozen high-growth biomedical companies including Avigen, a San Francisco-based gene therapy company; TyRx, a Princeton-based firm focused on the development of bio-compatible polymers; Elusys Therapeutics, a New Jersey company focused on the development of a novel technology to remove blood-borne pathogens; Sensatex, a Maryland company focused on the development of novel medical diagnostic systems; Heat Biologics, a Research Triangle-based company focused on the development of novel therapeutics to prime the immune system against a variety of disorders; and Scorpius BioManufacturing, a San Antonio based biologic CDMO.
Jeff received his M.B.A. from Stanford Business School, his J.D. from New York University School of Law and his B.A. from the University of Chicago, where he graduated with honors in Economics.


