Philip J. Mackey has more than 20 years of broad legal experience. He regularly handles complex commercial and employment litigation, class actions, non-compete and trade secret matters, intellectual property matters, insurance coverage litigation, and other commercial disputes. Philip also represents clients in the financial services industry, which representations frequently include matters pending before the Financial Industry Regulatory Authority (FINRA).

In addition to his litigation practice, Philip advises corporate clients on a wide range of issues that confront their businesses. He is heavily involved and invested in the start-up ecosystem in St. Louis, and he counsels startup and early stage companies on all aspects of their businesses, from inception to exit, including formation, intellectual property, capitalization, corporate, and employment issues.

Practice Areas


  • University of Missouri at Columbia School of Law (J.D., cum laude, 1999)
    • Missouri Law Review
    • Order of the Coif
  • Vanderbilt University (B.S., 1992)

Professional Affiliations

  • American Bar Association
  • National Employment Law Institute
  • Bar Association of Metropolitan St. Louis


  • U.S. Courts of Appeals, Seventh, Eighth and Tenth Circuits
  • U.S. District Court
    • Eastern and Western Districts of Missouri
    • Southern and Central Districts of Illinois
    • District of Colorado
  • Missouri Bar
  • Illinois Bar