Matthew D. Janssen

Matthew D. Janssen


Philadelphia, PA
Phone: 215.981.4527    Fax: 215.981.4750

Matthew D. Janssen is a partner in the Philadelphia office of Pepper Hamilton LLP. His litigation practice, in federal and state courts, has involved many types of complex business disputes, including commercial disputes, corporate litigation, professional liability claims and breach of fiduciary duty claims. Mr. Janssen also represents clients in matters relating to the regulatory activities of the U.S. Securities and Exchange Commission, the Financial Industry Regulatory Authority and state securities regulators.

Mr. Janssen devotes a considerable amount of time to pro bono matters, including the representation of homeless women living in Philadelphia’s shelter system.



  • J.D., magna cum laude, Villanova University School of Law, 2003, editor in chief, Villanova Law Review; Order of the Coif
  • B.A., Mathematics and Mathematical Sciences, magna cum laude, Colby College, 2000

Bar Admissions

  • Pennsylvania
  • New Jersey

Court Admissions

  • U.S. Court of Appeals, Fourth Circuit
  • U.S. District Court, Eastern District of Pennsylvania
  • U.S. District Court, District of New Jersey


  • Hon. Virginia A. Long, Associate Justice: Supreme Court of New Jersey , Trenton, NJ

Practice Areas