Bill is a founder and General Partner of Alta Communications and Marion Equity Partners, Massachusetts-based venture capital firms. He founded Alta’s predecessor firm, Burr, Egan, Deleage & Co. in 1979, and has identified and backed several of America’s leading growth companies in the information technology, life sciences, and communications industries. Prior to founding Burr, Egan, Deleage & Co., Bill was a Partner at TA Associates. He began his career as a Manager of Venture Capital for New England Enterprise Capital Corporation.

He is past President and Chairman of the National Venture Capital Association, a Trustee of Fairfield University, a Member of the Board of Overseers of The Wharton School and a Trustee of the University of Pennsylvania. He is a member of the Board of CRH plc, and a number of privately held companies.

Bill is also an owner of the Boston Celtics professional basketball team. Bill received a degree in Economics from Fairfield University and an MBA from the Wharton School.