
Antitrust
USA Guide 2026 : California
Rankings

Ranked Individual
Ranked Individual
About
Provided by O'Melveny & Myers LLP
Consistently ranked among the top global antitrust practices, we bring credibility and teamwork to everything we do, from precedent-setting courtroom victories to deft handling of merger reviews by agencies around the world.
Our litigation abilities range from extricating clients early and efficiently to achieving . And when it comes to shepherding transactions through global clearance processes, we are practice leaders. We routinely handle complex international mergers and obtain clearance in challenging situations.
We have a reputation for sophisticated, practical antitrust strategy that couples cutting-edge economic and doctrinal analyses with an adept reading of the regulatory and political environment, even under the tightest timeframes. And we are one of the few firms whose partners have tried—and won—cases for and against, the government.
With a team that includes veterans of the US Department of Justice’s Antitrust Division and the Federal Trade Commission, we offer clients an insider’s perspective, bolstered by our close partnerships with renowned economists and consultants.
Chambers Review
Provided by Chambers
Work Highlights
Provided by Chambers
O'Melveny & Myers represented Alaska Airlines in obtaining clearance from the Department of Justice after a second request investigation for Alaska Airlines' acquisition of Hawaiian Airlines.
Strengths
Provided by Chambers
The team at O'Melveny & Myers bring a wealth of knowledge to our work, they are extremely thorough and trustworthy.
Antitrust respondentUSAThe team at O'Melveny have very good case analysis and provide strong arguments. They look at things from a business perspective and provide solid legal advice.
Antitrust respondentUSA
Notable Practitioners
Provided by Chambers
Band 1 
Band 1 
Michael Tubach
Michael Tubach is an accomplished litigator who turns his hand to sophisticated civil antitrust disputes and criminal cartel cases. He has tremendous experience arguing cases at both trial and appellate levels. Michael is extremely knowledgeable and does an excellent job. He is also a real trial lawyer, which is very helpful.
Antitrust respondentUSAMichael is purpose driven and extremely knowledgeable in his craft.
Antitrust respondentUSAMichael is extremely intelligent and has good business acumen.
Antitrust respondentUSA
Ranked Individuals at O'Melveny & Myers LLP (1)
Members
Provided by O'Melveny & Myers LLP

Michael Tubach
View profile of Michael Tubach
O'Melveny & Myers LLP has rankings in the following guides
Band 4 Band 5
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