Mark B. Tresnowski has been a Managing Director and the General Counsel of Madison Dearborn Partners, LLC since March 2005. Prior to joining MDP, Mark was a partner at Kirkland & Ellis LLP, a firm he had been with from 1986 through 1999 and rejoined in August 2004 after having served as Executive Vice President and General Counsel of Allegiance Telecom Inc., a nationwide competitive local exchange carrier, from February 1999 through June 2004. Mark is responsible for MDP's legal, finance, accounting, regulatory and public relations matters. Mark is a member of the board of directors of the holding company of Nuveen Investments, Inc. and is a member of the board of trustees of Children’s Home + Aid.
Mark has lectured and written extensively on the legal aspects of private equity investing as well as on the corporate and securities law aspects of mergers and acquisitions generally, participating as a faculty member in numerous Practicing Law Institute seminars and publishing articles in Venture Capital Journal, Buyouts and The M&A Lawyer. He is also co-author of High Yield Offerings: An Issuer's Perspective, Merrill Corp. Publication (2008).
Mark received a Bachelor of Arts degree psychology from the University of Illinois and his Juris Doctor from the University of Virginia School of Law where he was an editor of the Virginia Law Review. He is a Certified Public Accountant.