LAWYER PROFILE
Boris Bronfentrinker

Boris Bronfentrinker

Global 2026

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Ranked in 2 practice areas

About

Provided by Willkie Farr & Gallagher LLP

Practice Areas

Boris Bronfentrinker is a partner in Willkie’s Litigation practice and Chair of the European Antitrust & Competition Litigation practice, based in London. Boris is a solicitor advocate practicing in complex commercial litigation, with particular experience in competition litigation. He has represented clients, both as claimants and defendants, in leading and high profile cases in both the High Court of England & Wales and the Competition Appeal Tribunal, along with successfully taking cases to the Court of Appeal and Supreme Court. Boris also has experience in coordinating competition litigation proceedings in other jurisdictions globally. Regularly acting for both claimants and defendants gives Boris a unique perspective and insight into the conduct of competition disputes from both sides. Boris is experienced in not only litigating cases to judgment but also resolving claims through alternative dispute resolution, such as mediation. Boris’ practice also extends to representing clients in the defence of investigations by the European Commission and the UK’s Competition & Markets Authority, including sector inquiries. Boris is also brought in by clients to contest merger decisions before the Competition Appeal Tribunal. He also has experience of managing internal investigations into competition law and bribery/corruption issues.

Personal

See: https://www.willkie.com/professionals/b/bronfentrinker%20boris

Education

King's College London, Post Graduate Diploma, 2007

University of Sydney, Bachelor of Laws, 1999

University of Sydney, Bachelor of Economics, 1997

Chambers Review

Provided by Chambers

Chambers Global Guide

Competition Law: Private Enforcement: Claimant - UK

Band 1
Band 1

Individual Editorial

Boris Bronfentrinker has notable experience acting for both defendants and plaintiffs in collective proceedings. He is active in matters involving the retail, financial services and automotive sectors. He is the European head of Willkie Farr & Gallagher's competition and antitrust litigation practice.

Competition Law: Litigation - UK

Band 3
Band 3

Individual Editorial

Boris Bronfentrinker has notable experience acting for both defendants and plaintiffs in collective proceedings. He is active in matters involving the retail, financial services and automotive sectors. He is the European head of Willkie Farr & Gallagher's competition and antitrust litigation practice.

Strengths

Provided by Chambers

  • Boris Bronfentrinker is unique. He's been excellent and is an incredibly hard-working, commercially-minded litigator. I'd recommend him for important cases.

    Competition Law: Private Enforcement: ClaimantChambers Global Guide
  • He brings a wealth of knowledge in an area that is evolving and he is an aggressive, strategic thinker.

    Competition Law: Private Enforcement: ClaimantChambers Global Guide
  • He has provided a level of strategic thinking, pragmatism and commercial awareness in a matter with significant legal complexity and business importance.

    Competition Law: Private Enforcement: ClaimantChambers Global Guide
  • Boris Bronfentrinker has a fast intellect, is easy to get on with and is a brilliant lawyer.

    Competition Law: Private Enforcement: ClaimantChambers Global Guide
  • He is super clever, a real rainmaker and is extremely resourceful and smart.

    Competition Law: Private Enforcement: ClaimantChambers Global Guide

Ranked Individuals at Willkie Farr & Gallagher LLP (69)

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