Karen Rigberg brings to her practice years of experience meeting business goals and client needs. As former Managing Counsel for Toyota Motor Sales, Ms. Rigberg was responsible for antitrust compliance, consumer protection, participation agreements, and contract compliance issues. During her time at Toyota, she handled transactions and agreements, including participation, services, supply, and car sharing programs. In that role, Ms. Rigberg was significantly involved in antitrust compliance, training, claims, litigation, consumer protection, and other matters. Prior to 2005, she handled product class actions, trademark enforcement claims, and product liability, and supervised all US warranty and Lemon Law work for the corporation.

Ms. Rigberg began her legal career at another law firm where she focused her practice on product liability litigation.


Antitrust Compliance from the Retail Perspective
Arnold & Porter Webinar-of-the-Month Club for Retailers
Implementing an Effective Antitrust Compliance Program: The Basics
Arnold & Porter's Antitrust Toolbox Webinar Series
Watch Your Step: Understanding Common Antitrust Risks in the Medical Device Industry
Advanced Medical Technology Association Webinar
Mitigating Antitrust Risks in the Food and Beverage Sector
Arnold & Porter Webinar
No-Poach and Non-Solicitation Agreements: Proceed With Caution
Arnold & Porter's Antitrust Toolbox Webinar Series


  • JD, University of Arizona, James E. Rogers College of Law
  • BA, University of Pennsylvania
  • California
  • Board Member, California Women’s Law Center

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