Mark Alan Weinberger founded Washington Counsel PC. Mr. Weinberger is Member of Aspen Economic Strategy Group and on the board of 15 other companies.

He previously held the position of Partner at Oldaker Law Group LLP, Partner at Ryan Phillips Utrecht & Mackinnon, Chairman & Chief Executive Officer of Ernst & Young LLP, Principal at Washington Counsel PC, Assistant Secretary at US Department of The Treasury, Chief Tax & Budget Counsel at United States Senate, Member-International Business Council at Forum Mondial de L'Economie and Member of The International Business Council.

He received an undergraduate degree from Emory University, a graduate degree and an MBA from Case Western Reserve University and a graduate degree from Georgetown University Law Center.