Jonathan W. Hackbarth, Partner


Jon Hackbarth is the National Chair of Quarles & Brady's Securities Litigation and Enforcement Practice Group and has been recognized by the The Best Lawyers in America® and Wisconsin Super Lawyers® for his securities litigation practice. Jon also represents a wide array of clients in connection with product liability lawsuits, shareholder and business disputes, and healthcare-related lawsuits.

Apart from his litigation practice, Jon works with clients across a variety of industries including the transportation, securities, technology, healthcare, and banking sectors to enhance the quality of their legal services, streamline their legal processes, and decrease their overall legal spend. Having started his career working in the legal department of a large corporation, Jon understands how outside counsel can partner with clients to achieve their desired result in a lawful, cost-effective manner.

Legal Services

Education and Honors

  • University of Wisconsin Law School (J.D., cum laude)
    • Wisconsin State Bar Award for Highest Achievement in Constitutional Law II and Professional Responsibility
    • Judicial Intern for Wisconsin Supreme Court Justice Louis B. Butler
    • Legal Intern for the Wisconsin Department of Justice Civil Litigation Division
    • Legal Intern for Miller Brewing Company's Legal Department
  • Marquette University (B.A.)
    • Monash University; Melbourne, Australia
    • Les Aspin Center for Government, Washington, DC

Bar Admissions

  • Wisconsin

Court Admissions

  • U.S. District Court, Eastern District of Wisconsin
  • U.S. District Court, Western District of Wisconsin
  • U.S. Court of Appeals, 7th Circuit

Professional and Civic Activities

  • Appointed as a Commissioner to the City of Milwaukee Standards and Appeals Commission
  • American Bar Association, Business Law Division, Business and Corporate Litigation Committee (Committee Member)
  • Milwaukee Young Lawyers Association (Board Member)
  • Marquette University High School Alumni Association (Board Member)
  • State Bar of Wisconsin (Member)

Professional Recognition

  • Selected for inclusion in Wisconsin Super Lawyers® – Rising Stars Editions for Securities Litigation
  • The Best Lawyers in America®, Litigation - Securities, 2022, 2023
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