Mark L. Silbersack


Mark's 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 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

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


  • American Bar Association, Antitrust Section
    • Compliance and Ethics Committee
    • Pricing Conduct Committee
    • Health Care Committee
  • Ohio State Bar Association, Antitrust Section chair (2005 - 2007)
  • City of Cincinnati, Human Services Advisory Committee 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
    • Board of Directors
  • United Way of Greater Cincinnati
    • Community Impact Cabinet
    • Regional Public Policy Council
  • Great Lakes Antitrust Institute, Planning Committee chair


  • Peer Review Rated AV in Martindale-Hubbell
  • Best Lawyers© 
    • "Lawyer of the Year" in Cincinnati for Antitrust Law  (2015)
    • "Lawyer of the Year" in Cincinnati for Litigation - Antitrust Law (2012, 2014, 2019)
    • Antitrust Law, Litigation - Antitrust 
  • Cincy Leading Lawyer by Cincy Magazine