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Capabilities

Antitrust

King & Spalding’s antitrust lawyers provide sophisticated, solution-oriented advice to clients in a wide variety of industries on all aspects of U.S. and international competition law, including mergers and acquisitions, joint ventures and other strategic alliances, government civil and criminal investigations, private antitrust litigation and counseling.  Clients rely on our antitrust lawyers for constructive counseling and guidance on legitimate arrangements between competitors, entry into new markets, product distribution systems and appropriate participation by clients at trade associations and standard-setting organizations, as well as to steer them through complex civil, criminal, and merger investigations and litigation. The key to our antitrust success is consistent, comprehensive and responsive counsel to our clients.

Our antitrust lawyers include several who have served in significant positions within U.S. antitrust enforcement agencies, including the former Deputy Bureau Director of the Federal Trade Commission, former Deputy Assistant Attorney General for Criminal Enforcement at the Antitrust Division of the Department of Justice, and a number of other DOJ and FTC veterans. We regularly appear before these and other key competition authorities, including state attorneys general.

Our lawyers also have substantial experience coordinating efforts to gain approval of transactions from the EU and other non-U.S. antitrust authorities, including guiding clients through Phase II merger investigations, responding to Article 11 letters and advising clients on issues of jurisdiction and disclosure of information from abroad.

Our lawyers are also active in the Antitrust Section of the American Bar Association and the Antitrust Practice Group of the American Health Lawyers Association, where our lawyers hold or have held numerous leadership positions, including Co-Chair of the Mergers and Acquisitions Committee, Chair of the Criminal Practice and Procedure Committee, and Vice-Chair of the Cartel and Criminal Practice Committee.

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Insights

Article · Source: Harvard Law School Forum on Corporate Governance

November 17, 2025
A New Era in Antitrust

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Recognized as Best Law Firm of the Year


American Lawyer Industry Awards, 2023

Ranked Band 1 in Antitrust – Georgia


Chambers USA, 2025

Ranked Band 1 in Antitrust – Texas


Chambers USA, 2025

Ranked as a leading law firm in Antitrust – District of Columbia


Chambers USA, 2025

Ranked as a leading law firm in Antitrust – New York


Chambers USA, 2025

Highly Recommended Practice for Antitrust – New York


GCR 100, 2026

Highly Recommended Practice for Antitrust – Texas


GCR 100, 2026

Recommended Practice for Antitrust – Washington, D.C.


GCR 100, 2026

Recommended Practice for Antitrust – Brussels


GCR 100, 2026

Ranked as a leading law firm in Merger Control and Civil Litigation/class action: defense


Legal 500 US, 2025

Ranked as a leading law firm in Competition: EU And Global – Belgium


Legal 500 EMEA, 2025

Ranked Tier 1 Best Law Firms for Commercial Litigation – USA


US News & World Report, 2026

Ranked Tier 1 Best Law Firms for Antitrust – Atlanta


US News & World Report, 2026

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Recognition

Recognized as Best Law Firm of the Year


American Lawyer Industry Awards, 2023

Ranked Band 1 in Antitrust – Georgia


Chambers USA, 2025

Ranked Band 1 in Antitrust – Texas


Chambers USA, 2025

Ranked as a leading law firm in Antitrust – District of Columbia


Chambers USA, 2025

Ranked as a leading law firm in Antitrust – New York


Chambers USA, 2025

Highly Recommended Practice for Antitrust – New York


GCR 100, 2026

Highly Recommended Practice for Antitrust – Texas


GCR 100, 2026

Recommended Practice for Antitrust – Washington, D.C.


GCR 100, 2026

Recommended Practice for Antitrust – Brussels


GCR 100, 2026

Ranked as a leading law firm in Merger Control and Civil Litigation/class action: defense


Legal 500 US, 2025

Ranked as a leading law firm in Competition: EU And Global – Belgium


Legal 500 EMEA, 2025

Ranked Tier 1 Best Law Firms for Commercial Litigation – USA


US News & World Report, 2026

Ranked Tier 1 Best Law Firms for Antitrust – Atlanta


US News & World Report, 2026

News

In the News · Source: Law360, Bloomberg Law, Global Competition Review, The Deal, Global Legal Chronicle, Thomson Reuters Westlaw Today, The Daily Docket and Corporate Counsel Business Journal

November 17, 2025
Partner John Carroll rejoins the firm’s Antitrust practice in Washington, D.C.

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