Mark L. Silbersack


Mark is a member of the Litigation Department. His practice focuses on antitrust and product liability litigation and counseling. He has participated in the defense of restraint-of-trade, monopoly, price discrimination, and unfair competition cases. He has served as liaison counsel for defendants in a price-fixing class action and assisted clients in dealing with government investigations. His experience includes internal corporate audits and investigations, class actions, punitive damages, and appellate work. While his practice usually involves consumer products, he also has represented health care providers, medical device companies and non-profit organizations.


  • University of Chicago Law School  (J.D., 1971)
  • Boston College  (B.A., summa cum laude, 1968)

Bar Admissions

  • Ohio (inactive)

Court Admissions

  • Southern District of Ohio
  • Sixth Circuit Court of Appeals
  • Third Circuit Court of Appeals
  • U.S. Supreme Court


  • American Bar Association, Antitrust Section (Health Care, Pricing Conduct, and Compliance and Ethics Committees)
  • Ohio State Bar Association, Antitrust Section, chair 2005-2007
  • City of Cincinnati Human Services Advisory Committee, member and co-chair (2010-2012)
  • Cincinnatus Association, president
  • Cincinnati Civil War Round Table, secretary
  • Cincinnati Regional USA Chamber of Commerce, Ballot Issues Committee
  • Children, Inc., president and Board of Directors
  • United Way of Greater Cincinnati, Community Impact Cabinet and Regional Public Policy Council
  • Great Lakes Antitrust Institute, Planning Committee chair


  • Named the Best Lawyers'® Cincinnati Antitrust Law and Litigation "Lawyer of the Year" - 2012, 2014
  • Peer Review Rated AV in Martindale-Hubbell
  • Listed in The Best Lawyers in America© for Antitrust Law 
  • Selected as a Cincy Leading Lawyer by Cincy Magazine
  • Named the Best Lawyers® 2015 Cincinnati Antitrust Law “Lawyer of the Year”