R. Gregg Stone is an active angel investor and manages Kestrel Ventures, LLC, the general partner of two small venture funds. Investments have included companies in the healthcare, software, retail and manufacturing industries. He currently serves as a director of four private companies and as a Chairman of another. Past directorships have included IntraServer, merged into LSI Logic, Progressive Technologies, merged into Brooks Automation, and NovaCare, from inception through NYSE listing.

Before founding Kestrel in 1996, Gregg worked at Pell, Rudman & Co. Inc. (now Atlantic Trust Company), a Boston-based investment adviser, and served as the general partner of its two venture funds. Gregg joined Pell, Rudman after practicing law at the firm of Hemenway & Barnes in Boston. He holds J.D. and A.B. degrees from Harvard. Gregg serves as a director of the Boys & Girls Clubs of Boston, Summer Search Boston and Camp Pasquaney. He is a trustee emeritus of the Beth Israel Deaconess Medical Center.