John H. Mathias, Jr. is Chair of the Firm’s Insurance Litigation and Counseling Practice and a veteran trial lawyer who focuses on complex business litigation. Clients seek his representation in disputes related to contracts, insurance coverage, employment, class actions, professional liability and intellectual property. He also has significant experience in reinsurance arbitrations.

Since 2004, Chambers & Partners USA has named Mr. Mathias one of the country’s leading lawyers in Insurance Law.  Benchmark Litigation also named him a national Insurance Litigation Star in 2009. Mr. Mathias is AV Peer Review Rated, Martindale-Hubbell’s highest peer recognition for ethical standards and legal ability. Mr. Mathias is a member of the Firm's Reinsurance, International Arbitration, Complex Commercial Litigation, Class Action, and Labor and Employment Practices.  Mr. Mathias has co-authored more than 20 legal publications and is a frequent lecturer on insurance coverage litigation topics. 

Mr. Mathias has been an active member of the American Bar Association’s Section of Litigation, serving on the Leadership Council and co-chairing various Section committees, including the Insurance Coverage Litigation Committee and its bipartisan Task Force on Environmental Insurance Coverage. He is currently Chair of the ABA's Death Penalty Representation Project and Co-Chair of the Section's International Litigation Committee.  Prior to joining Jenner & Block, Mr. Mathias served as trial defense counsel in the U.S. Navy JAG Corps where he tried hundreds of court martials in Long Beach, CA, San Diego, CA, and Jacksonville, FL.