David A. Westrup

  • Office:
    • Milwaukee

      411 East Wisconsin Avenue
      Suite 1000
      Milwaukee, WI 53202

  • Telephone: (414) 287-1528
  • Fax: (414) 238-6678
  • Connect: LinkedIn Twitter

Dave is a trusted advisor and problem solver for national manufacturers and distributors, focusing on protecting and advancing client interests in product liability, insurance and risk management, and antitrust matters. Dave has extensive experience in working with Fortune 500 management teams and legal departments, providing sophisticated advice to successfully and creatively address challenges posed by government agencies, competitors and collaborators, and members of the public. Dave routinely represents corporations as national coordinating or trial counsel in cases proceeding to verdict. Examples of Dave’s imaginative counsel for high-profile clients include United States v. Ajinomoto Co., Inc., a defense of a corporate executive in a global conspiracy to fix the price of lysine (this conspiracy was the subject of The Informant! – the Stephen Soderberg film starring Matt Damon), and representation of a national insurance company in Columbia Casualty Company v. Arjo Wiggins Appleton PLC, which involved coverage for alleged PCB contamination of the Fox River, and was one of the largest and longest civil trials taken to verdict in Wisconsin.

Dave has repeatedly served as special counsel on U.S. law in overseas matters, including products liability and insurance matters before the House of Lords and the High Court of Australia. He recently presented in London on U.S. law as part of Keoghs annual Latent Disease conference, explaining how to use contribution principles to transfer liability to other, responsible parties.

Dave is AV Preeminent® Peer Review Rated by Martindale-Hubbell®. He is a past-President of both the Milwaukee Bar Association and the Wisconsin Hispanic Lawyers Association. He is a former member of the Board of the Milwaukee Bar Association Foundation, and a member of the American Bar Association, the Seventh Circuit Bar Association, the Hispanic National Bar Association, the Defense Research Institute, and the Milwaukee Barristers’ Club. He is a Charter Member of Lawyers for Libraries, a group providing support to Milwaukee Public Library’s mission to inspire lifelong learning, advance knowledge, and strengthen Milwaukee’s neighborhoods. Dave routinely mentors litigation associates in pro bono engagements, and serves as a participant at law school trial advocacy programs. He is an equity shareholder, and member of the firm’s Litigation and Risk Management Practice Group.

Dave has authored a variety of articles on legal and law-related topics, including:

  • the historical roots of the right against self-incrimination;
  • procedural aspects of business torts and unfair competition claims;
  • diversity in the law;
  • extraterritorial application of the Racketeer Influenced and Corrupt Organizations (RICO) statute to civil claims;
  • health care and antitrust law;
  • twentieth-century art collector and New York attorney, John Quinn
  • the influence of translations; and
  • the Judge Dee Mysteries – a series of detective novels and stories, written by a twentieth-century Dutch diplomat named Robert van Gulik but set in seventh-century China.

Practice Areas:


  • University of Michigan Law School, J.D., cum laude, 1989
  • Columbia College, Columbia University, A.B., 1984

Bar Admissions:

  • Wisconsin
  • U.S. District Court, Eastern and Western Districts of Wisconsin
  • U.S. Court of Appeals, Seventh Circuit
  • Ohio
  • U.S. District Court, Southern District of Ohio
  • U.S. Court of Appeals, Sixth Circuit


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