Professional Biography
Image of Jon Buck

Jon R. Buck Partner

Deputy General Counsel; Litigation Lead, Chicago Office

  • Chicago

    D +1.312.324.8644

    F +1.312.324.9400


    110 North Wacker Drive, 34th Floor

    Chicago, IL 60606




Jon Buck is a trial lawyer who has been helping companies and individuals resolve complex disputes and regulatory matters for more than 20 years. He leads the Litigation practice group in the Chicago office and draws upon his broad range of litigation and regulatory enforcement experience to help clients craft strategies to successfully achieve their goals. In many matters, that means a negotiated resolution without extended litigation. In others, however, clients have relied upon Jon to successfully defend their interests all the way to judgment in trial or arbitration. At each turn, Jon tackles client challenges with a collaborative approach and practical judgment and advice.

Jon has represented clients across a range of industries throughout his career, with a focus on technology, food, and finance, as well as other professional service companies. He has represented clients in professional negligence claims, trade secret and privacy litigation, product liability and toxic tort claims, corporate control and fiduciary disputes, and class actions. Jon also has experience counseling and defending clients in inquiries by the U.S. Securities and Exchange Commission (SEC), the U.S. Department of Justice (DOJ), and other regulators related to civil and criminal compliance issues, including those involving cybersecurity, anticorruption and antitrust risks, corporate governance, insider trading, whistleblowers, and internal investigations.

As a deputy general counsel for Perkins Coie, Jon advises firm lawyers on professional responsibility issues, supports the firm’s general counsel in advising on legal matters, and works on claims against the firm.

Professional Recognition

  • Award for Excellence in Pro Bono Service, from the Judges of the Northern District of Illinois and the Chicago Chapter of the Federal Bar Association
  • Listed as an Illinois Rising Star as published by Law & Politics, 2009  2015

*The Supreme Court of Illinois does not recognize certifications of specialties in the practice of law and no certificate, award or recognition is a requirement to practice law in Illinois.

Related Employment

  • Perkins Coie LLP, Seattle, WA, Summer Associate, 2001
  • Miller Nash, LLP, Portland, OR, Summer Associate, 2000





Bar and Court Admissions

  • Illinois
  • U.S. District Court for the Northern District of Illinois
  • U.S. District Court for the Eastern District of Wisconsin
  • U.S. Court of Appeals for the Seventh Circuit


  • University of Michigan Law School, J.D., magna cum laude, Order of the Coif, 2002, Associate Editor, Journal of Law Reform
  • University of Puget Sound, B.A., cum laude, 1997