Department profile
O'Melveny & Myers LLP

Antitrust: Cartel

Global Guide 2026 : USA


O'Melveny & Myers LLP

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Chambers Review

Provided by Chambers

Antitrust: Cartel - USA

Band 2

Band 2


What the Team is Known For

O'Melveny & Myers LLP has a sophisticated practice that combines cartel defense, criminal and civil litigation expertise with a highly capable transactional antitrust offering. It is able to tap into global resources to advise on cross-jurisdictional competition matters for important clients. The firm is equally capable of representing both defendants and plaintiffs in complex litigation, and maintains client relationships in a range of sectors including airlines, financial services and natural resources.

Strengths

The lawyers know the business and the law.

The team is extremely knowledgeable and intelligent. They have a real talent for distilling complicated topics into easy to understand bits.

The lawyers at O'Melveny are incredibly smart, practical and really responsive. They are extremely good thinkers and writers.

Notable practitioners
Michael Tubach
Michael Tubach regularly acts in investigations relating to price manipulation and competition suppression.

Michael's courtroom acumen excels.

Michael is a terrific trial lawyer.

Michael really helps me understand and breaks down terms.

Michael is very knowledgeable legally but he is also a very strategic thinker.

Michael Tubach is a very strong antitrust litigator.


Ian Simmons

Ian Simmons cochairs the antitrust practice at the firm. He is a trial lawyer noted for his decades of experience litigating in the space. He has notable expertise in price-fixing cases and also handles governmental investigations.

Ian is definitely a talented litigator, especially on class actions, which is where he thrives.

Ian really understands the value of strategy. He thinks holistically about cases.

Ian takes a very complex subject and explains it. He is also a super strategic thinker. He just anticipates the next move so we are always ready to go.

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Ranked Individuals at O'Melveny & Myers LLP (2)

USA

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