William K. O'Brien

Background

O'Brien, William K. was born in 1945.

Education

Graduate, Bentley College, Waltham, Massachusetts, 1967.

Career

Staff accountant Coopers & Lybrand, Boston, 1967, various senior mgmt positions, then managing partner, 1975—1998. Deputy chairman international, business development & human resources, then chief operating officer Coopers & Lybrand (merged with Price Waterhouse), New York City, 1991—1998. Global managing partner PricewaterhouseCoopers, 1998—2000.

Board directors, Chief Executive Officer Enterasys Networks, Inc., 2002—2006, chairman board directors, 2004—2006. Board directors Massachusetts Telecomm. Council, since 2003, Brocade Communications Systems, Inc., since 2004, Virtusa Corporation, since 2008, Mercury Computer Systems, Inc., since 2008.

Achievements

• William K. O"Brien has been listed as a noteworthy professional, executive by Marquis Who's Who.