Williams & Connolly handles all aspects of antitrust litigation and represents major corporations and individuals — both as plaintiffs and defendants. The partners handling antitrust matters have vast experience in every type of litigation (e.g., civil, criminal, government enforcement, class action, business to business), and thus combine the firm’s traditional excellence in criminal and civil litigation with the knowledge and experience necessary to deal with complex antitrust matters. For additional information, please refer to the firm's criminal antitrust matters under Criminal Defense and Government Investigations.

The firm’s antitrust group is routinely recognized as one of the nation’s best and focuses almost exclusively on high-stakes and high-profile federal antitrust litigation.  In recent years, the firm has handled some of the most significant antitrust matters in the country, including our representation of Google in United States v. Google (currently being litigated in the U.S. District Court for the District of Columbia), AstraZeneca in the nation’s first “pay-for-delay” jury trial (tried to a complete defense verdict), Amazon in a number of public and confidential matters, including private, treble-damages price-fixing lawsuits, as well as Par Pharmaceutical in a massive price-fixing case.  In numerous matters the firm defends, the plaintiffs seek not only significant monetary damages, but also substantial changes in long-standing industry practices.

The breadth of our overall litigation practice and that Williams & Connolly lawyers are multi-disciplinary litigators give us superior capabilities in antitrust cases that intersect with other areas of the law, including pharmaceuticals, financial services, intellectual property, healthcare, and sports law.


“Behavioural Matter of the Year for the Americas,” Global Competition Review, 12th Annual Awards 2022

Antitrust: Cartel, Chambers Global, 2022-2024

Antitrust: Cartel (Nationwide), Chambers USA, 2021-2023

Antitrust: Cartel (DC), Chambers USA, 2023

Antitrust - Tier 1, Benchmark Litigation, 2021-2024

Antitrust (Civil Litigation/Class Actions), The Legal 500, 2016-2023

Antitrust (Cartel), The Legal 500, 2016-2019

Antitrust, LMG Life Sciences, 2022

Williams & Connolly Shortlisted for 2024 "Antitrust Firm of the Year" by Benchmark Litigation

Williams & Connolly Shortlisted for 2024 "Antitrust Firm of the Year" by Benchmark Litigation
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