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Stefan M. Meisner

Phone: +1 202.624.2937
1001 Pennsylvania Avenue NW
Washington, DC 20004-2595

Stefan Meisner is a partner in the Antitrust and Competition group in the Washington, DC office of Crowell & Moring. He focuses his antitrust practice on complex, multi-district class action litigation alleging Sherman Act violations, U.S. Department of Justice (DOJ) investigations, merger investigations, and intellectual property issues.

He counsels clients on the antitrust implications of patent licensing and settlements of infringement litigation. In addition, he counsels clients on global strategies for addressing cartel prosecutions and defenses, from the inception of government investigations, to the initiation of civil class action litigation in a variety of jurisdictions. He also provides legal services to clients in connection with antitrust matters and electronic discovery issues.

Applying his understanding of clients’ business and legal priorities, Stefan also provides tailored compliance counseling and helps clients proactively address potential risk areas when designing comprehensive compliance programs.

Stefan serves clients in a variety of industries, including consumer products, defense and aerospace, high-tech, semi-conductors, hospitals, alcoholic beverages, steel, mining, and aggregates. He also advises on major mergers and acquisitions.

To develop efficient and effective solutions for businesses facing issues with e-discovery and management of electronically stored information, Stefan counsels clients on electronic discovery issues in the litigation and regulatory arenas. He counsels clients on developing effective strategies for managing electronic records in light of evolving standards on preservation and production of electronic documents and data under the U.S. Federal Rules of Civil Procedure. Stefan also has extensive experience with investigations that involve forensic examination of electronic media and data.

Stefan is active in representing individuals seeking asylum in the U.S. and U.S. service veterans who are seeking government benefits related to their service.

While in law school, he was the Editor-in-Chief of the American University International Law Review.

Representative Matters

  • Representing a Japanese automotive parts manufacturer in the antitrust multi-district litigation relating to automotive parts following DOJ investigation and resolution.
  • Defended a chocolate confectionery company in a class action price fixing litigation, winning summary judgment.
  • Defended Static Control Components, Inc. in a copyright, Digital Millennium Copyright Act (DMCA), and patent infringement action, including assertion of patent misuse defense, obtaining favorable jury verdict after five-week trial, successful Sixth Circuit appeal, and favorable decision from U.S. Supreme Court.
  • Defended a power tools manufacturer, achieving a motion to dismiss with prejudice related to charges of conspiring with other suppliers not to license the plaintiff’s technology and to manipulate certain safety standards.
  • Obtained merger clearance in multiple jurisdictions for defense contractor’s acquisition.
  • Defended a medical device manufacturer in antitrust counterclaim raised in a patent infringement case, winning summary judgment against allegations of “technological tying” of insulin pumps and related disposable infusion “sets.”
  • Defended a semiconductor company in antitrust counterclaim raised in a patent infringement case, winning motion to dismiss against allegations that the patent holder knew its patents were invalid at the time the plaintiff filed its infringement suit.
  • Obtained regulatory clearance in multiple complex acquisitions, often involving Second Requests, for numerous clients.


  • University of Massachusetts Amherst, B.A. (1991)
  • American University Washington College of Law, J.D. (1999) cum laude


Admitted to practice: District of Columbia; Maryland


  • Global Competition Review
  • The Legal 500 (2019)
  • Washington Super Lawyers (2012 to present)

Professional Activities and Memberships

  • Member, The Sedona Conference®, Working Group on Electronic Document Retention and Production

View More

"DOJ Brings First Criminal Charges for Collusion in Labor Markets," Antitrust Law Alert (December 11, 2020). Contacts: Daniel L. Zelenko, Megan L. Wolf, Stefan M. Meisner, Shawn R. Johnson, Alexis Victoria DeBernardis, Alexis J. Gilman
Client Alert / Newsletter
"Transition 2021: Antitrust in a Biden Administration: Back to the Future?" Crowell & Moring Webinar (December 4, 2020). Presenters: Alexis J. Gilman, Stefan Meisner, Jeane A. Thomas, and Megan L. Wolf.
Crowell & Moring Bolsters Antitrust Team Commercial Dispute Resolution (October 20, 2020)
Media Mentions
As Antitrust Practices Stay Active, Crowell And Lowenstein Bulk Up American Lawyer (October 14, 2020)
Media Mentions
Crowell & Moring Snags Partner From McDermott Global Competition Review (October 14, 2020)
Media Mentions
Crowell & Moring Hires New Antitrust Litigator Competition Policy International (October 14, 2020)
Media Mentions
Crowell Grows Again In D.C. With McDermott Antitrust Pro Reuters Legal (October 14, 2020)
Media Mentions
Antitrust Litigator Stefan Meisner Joins Crowell & Moring (Oct.14.2020)
Firm News / Announcement
Wake Up Call: Wilson Sonsini To Outsource Back-Office Ops Bloomberg Law (October 9, 2020)
Media Mentions
"INSIGHT: If Past Is Prologue, Ramped Up Antitrust Compliance Is Critical," Bloomberg Law (June 16, 2020). Author: Stefan Meisner.

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Crowell & Moring LLP is an international law firm with approximately 550 lawyers representing clients in litigation and arbitration, regulatory and policy, and transactional matters. The firm is internationally recognized for its representation of Fortune 500 companies in high-stakes litigation, as well as its ongoing commitment to pro bono service and diversity, equity and inclusion. The firm has offices in Brussels, Doha, London, Los Angeles, New York, Orange County, San Francisco, Shanghai, and Washington, D.C.

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