William P. Egan is an American venture capitalist. He is the founder and general partner at Alta Communications, a venture capital firm,[1][2][3] and Marion Equity Partners, a private equity firm, both based in Boston, Massachusetts.[4][5] Egan also founded Alta's predecessor firm, Burr, Egan, Deleage & Co. (BEDCO) in 1979 and has identified and backed several of America's leading growth companies in the information technology, life sciences, and communications industries. Egan is also a limited partner, along with fellow BEDCO founder Craig Burr, at Nobska Partners, also in Boston.