John J. Bartko

John J. Bartko

Bartko Zankel Bunzel & Miller, PC

Recognized since 2013

San Francisco, California

Practice Areas

Commercial Litigation

Criminal Defense: White-Collar

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John Bartko is a Founder and a Principal of the firm. He represents both plaintiffs and defendants in complex civil, criminal and regulatory matters. He has represented many executives ensnared in complex regulatory investigations and has been involved in significant international discovery and complex investigations requiring foreign court appearances, including conducting examinations in Switzerland and Japan through pioneering requests for civil judicial assistance. He has traveled to Europe, Asia and South Africa to obtain evidence for American civil and criminal proceedings and has represented foreign officials in U.S. legal matters. He has broad experience in representing various parties in complex financial fraud and environmental law cases. One of his trials was nationally televised on Court TV.

Contact & Links


  • One Embarcadero Center, Suite 800
    San Francisco, CA 94111


  • University of California - Berkeley, J.D., graduated 1965
  • University of California Los Angeles , BA (Political Science), graduated 1962

Bar Admissions

  • California, The State Bar of California 1/11/1966


  • American Bar Association, Committee on White Collar Crime - Member
  • Association of Business Trial Lawyers, Northern California (ABTL) - President (2003)
  • Bar Association of San Francisco - Member
  • Berkeley Center for Law, Business and the Economy - Advisory Board

Recognized in The Best Lawyers in America® 2023 for work in:

  • Commercial Litigation
  • Criminal Defense: White-Collar

Special Focus

  • Antitrust Trials and Investigations
  • Arbitration
  • Class Action Litigation
  • Complex Business Litigation
  • Environmental Litigation
  • Financial Institution Litigation
  • Intellectual Property Litigation
  • Labor and Employment Litigation
  • Professional Malpractice Litigation
  • Shareholder & Securities Disputes
  • White Collar Criminal Defense


  • 1978-2022, Martindale-Hubbell Peer Review, AV Rating, 5 Stars.
  • 2005-2022, Northern California Super Lawyers.
  • 2013-2022, Best Lawyer.

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