Antitrust and Competition Law

"wonderful, hard working, responsive, smart, prudent. Fantastic team."

The Legal 500 U.S. 2022

In a time of increased global business activity, virtually every significant commercial transaction, business strategy and marketplace activity in some way implicates antitrust and competition laws in the United States, Europe or other jurisdictions. Our highly-ranked group of antitrust and competition lawyers regularly handles the highest profile, "bet the company" matters such as Boehringer Ingelheim GmbH's $12.6 billion business swap with Sanofi, Dresser-Rand's $7.6 billion merger with Siemens and MeadWestvaco's $16 billion merger with RockTenn.

Our antitrust lawyers represent many of the world's leading companies in mergers and acquisitions, complex civil antitrust litigation, international cartel matters and other investigations and proceedings by U.S., European and other international antitrust enforcement agencies. We represent clients in a wide range of industries, including life sciences, technology, telecommunications, media, oilfield services, mining and mining equipment, metals, industrial equipment, paper, pipe, chemical, energy, grocery products, agricultural products and health care. Our lawyers have advocated clients’ interests before the Department of Justice Antitrust Division, the Federal Trade Commission, State Attorneys General, the European Commission and numerous Member States, the Ministry of Commerce of the People’s Republic of China (MOFCOM), the Russian Federal Antimonopoly Service and a number of other U.S. and international administrative and regulatory agencies.

Our competition lawyers have extensive trial experience in highly complex cases, often combining forces with other Baker Botts lawyers in such areas as intellectual property, corporate, tax and finance, energy, environmental and appellate law. Baker Botts antitrust lawyers handle litigation on behalf of both plaintiffs and defendants in state and federal courts throughout the United States, and have litigated merger and non-merger cases against the Federal Trade Commission and Department of Justice. We represent companies and individuals in civil and criminal investigations and adversary proceedings involving the entire spectrum of antitrust and competition issues. Our antitrust litigation docket includes grand jury investigations, class actions, parallel litigation in state and federal courts, multi-district litigation, preliminary injunction hearings and other complex proceedings.

Finally, we have a robust counseling practice and work to help clients anticipate and avoid antitrust problems in mergers, acquisitions and joint ventures; distribution and franchise arrangements; standards setting; intellectual property acquisition and licensing; product and service pricing; advertising; trade association activity; and relationships with customers, competitors and employees.


Related Experience


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Merger of Shipbuilding Giants Halted as EU Reinforces Tough Line On Antitrust

Legal Week

Legal Week


Global Competition Review

Global Competition Review

United States: Texas

Global Competition Review

Global Competition Review


Global Competition Review

Global Competition Review

Bloomberg Technology

Bloomberg Technology - Bloomberg Television

Bloomberg Technology - Bloomberg Television

Thought Leadership

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Recap: States v. Google Explained

External Article

Monopoly Matters, American Bar Association (ABA) Unilateral Conduct Committee Newsletter, Vol 18, No. 1

Antitrust in Times of Crisis and Emerging from the Crisis

Speeches & Presentations

Keynote Address, Law Council of Australia Competition & Consumer Workshop

Antitrust, FTC and eCommerce

Speeches & Presentations

Private Label Manufacturing Association Virtual 2020 Washington Conference

Merger Enforcements

Speeches & Presentations

Panelist, 14th Annual Global Antitrust Enforcement Symposium

The Future: Global Privacy Regulation and Convergence

Speeches & Presentations

Panelist, TechGC,  Privacy Virtual Forum: The GC’s Role in Operationalizing Privacy At Home and Abroad


Hot Topics

Speeches & Presentations

Speaker, 67th ABA Section of Antitrust Law Spring Meeting

Obtaining Discovery Abroad

External Article



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Digital and UK Antitrust

Baker Botts in partnership with Concurrences is delighted to host a webinar titled Digital and UK Antitrust on Monday 22 March at 2.30pm (GMT).

GCR Interactive: Women in Antitrust

Baker Botts Partner Catriona Hatton is speaking at the GCR Interactive: Women in Antitrust Conference on November 18th.

KNect365 Antitrust TX 2019

Baker Botts Antitrust Partners Erik Koons and Maureen Ohlhausen will be speaking at the Knect365 Antitrust TX 2019 Conference in Houston on September 24, 2019.

Georgetown Law Global Antitrust Enforcement Symposium

Baker Botts is proud to co-sponsor the 13th Annual Global Antitrust Enforcement Symposium on September 10, 2019. The conference is a leading forum for lawyers, policymakers, corporate executives, economists, and academics to address current issues in competition law and policy. This year's event will be held on the Georgetown University Law Center campus in the Hart Auditorium.

27th Annual Fordham IP Conference

Baker Botts Partner Maureen Ohlhausen will be speaking at the 27th Annual Fordham IP Conference on Friday, April 26th.

LeadershIP 2019

Baker Botts Partner Maureen Ohlhausen will be speaking at the sixth annual LeadershIP conference in Washington D.C. on March 26, 2019.

CDR Winter Competition Litigation Symposium 2019

Baker Botts is proud to sponsor the CDR Winter Competition Litigation symposium. This event will take place in London on the 28 February, this will be CDR’s fourth annual Winter Competition Litigation Symposium offering key insights on the development of this important practice area for corporate counsel, competition lawyers and commercial litigators alike, canvassing the latest thinking on UK , EU and US antitrust litigation.

Proof of Conspiracy Under the Federal Antitrust Laws Book Launch Event

On Friday, February 22, Baker Botts and the ABA Antitrust Section Joint Conduct committee are hosting a panel presentation and networking event celebrating the publication of the second edition of the ABA Antitrust Section's book, "Proof of Conspiracy Under the Federal Antitrust Laws."

IEL 70th Annual Oil & Gas Law Conference

On February 21st, Baker Botts Partner Thomas Fina will be speaking on a panel about Innovations in Collaboration v. Collusion in the Oilfield at the IEL 70th Annual Oil & Gas Law Conference.

GCR Live 2nd Annual IP & Antitrust California

Baker Botts is pleased to sponsor the GCR Live 2nd Annual IP, Antitrust & Innovation conference on Thursday May 24, 2018 at the University of California, Berkeley.

GCR Live 7th Annual Antitrust Law Leaders Forum

Global Competition Review will host its international conference titled “GCR Live 7th Annual Antitrust Law Leaders Forum” from Friday, February 2nd to Saturday, February 3rd in Miami, Florida.

Antitrust Fundamentals CLE

This must attend seminar will provide insight into the latest developments in the rapidly evolving Antitrust arena.

Fearless Entrepreneurs: Unstoppable & Extraordinary

The Northwestern Pritzker School of Law, Kellogg School of Management and Northwestern Alumni Association will host “Fearless Entrepreneurs: Unstoppable & Extraordinary,” at Northwestern University’s San Francisco Office on March 8, at 6pm PT.