Constantine Cannon LLP and Partner Ankur Kapoor Recognized In Chambers USA Guide 2025, Antitrust: Mainly Plaintiff Rankings

(NEW YORK) June 12, 2025 – Constantine Cannon is delighted to announce that the firm and one of its partners, Ankur Kapoor, have been recognized in the Chambers USA Guide 2025 in the Antitrust: Mainly Plaintiff rankings.¹

The Ranking Process

The Chambers USA Guide ranks the top US law firms in over 50 practice areas on the state and national level. From August 2024 to February 2025, Chambers USA’s researchers reviewed and analyzed each submitted law firm and interviewed referees. These rankings “offer the most in-depth and comprehensive coverage of each law firm for those looking to find a lawyer, attorney or law firm in the US for legal advice and work.”²

Constantine Cannon’s Ranking

Constantine Cannon is ranked in Band 2 in the Firms category of Antitrust: Mainly Plaintiff – New York. According to Chambers, the firm’s “antitrust team is highlighted for its considerable plaintiff work. The group represents clients before federal and state antitrust enforcement agencies. The team demonstrates strength in advising clients on a range of issues, including antitrust compliance programs, licensing agreements and merger analysis.”³

Chambers shared some of the firm’s distinguished work: “Constantine Cannon has represented more than 40 merchants and trade associations seeking reform of network rules and substantial damages for their claims that Visa, Mastercard, and certain banks illegally set interchange fees and imposed anticompetitive rules.”

Ankur Kapoor’s Ranking

In the Lawyers category, Ankur Kapoor was selected in Band 3 of the Chambers USA Guide 2025 Antitrust: Mainly Plaintiff rankings. Chambers stated: “Ankur Kapoor has notable experience in antitrust cases. He often handles plaintiff-side representation in class action litigation. He is extremely knowledgeable.”⁴

Mr. Kapoor is a partner at Constantine Cannon and has been at the firm since 2004, focusing on antitrust litigation and counseling. With over 20 years of experience, Mr. Kapoor has been involved in many areas of antitrust law, including price fixing, tying, exclusive dealing, bundled discounts, monopolization, patent-antitrust, settlements of Hatch-Waxman patent-infringement litigation, merger analysis, and joint ventures.

His practice has encompassed antitrust litigation and counseling in private actions and class actions, as well as federal and state antitrust agency proceedings. He has represented clients in various industries, including air transportation, automotive, biotechnology and pharmaceutical, consumer products, e-commerce, electronic payments, fashion, media, technology, and telecommunications.

Recently, Mr. Kapoor has been a member of the team representing over 60 major corporations in their credit- and debit-card swipe-fee antitrust action against Visa and Mastercard.

Mr. Kapoor commented: “It is an honor to be recognized by Chambers and work on important cases alongside my extraordinary colleagues at Constantine Cannon.”

More About Constantine Cannon LLP

Constantine Cannon, with offices in New York, Washington, D.C., and San Francisco, has deep expertise in practice areas that include antitrust and complex commercial litigation, whistleblower representation, government relations, securities and e-discovery. The firm is responsible for two of the top five antitrust settlements in U.S. history.

Constantine Cannon’s antitrust practice is internationally recognized across multiple industries including healthcare, banking, electronic payments, insurance, high tech, telecommunications, the Internet and government contracting. The firm’s Whistleblower Team has been responsible for many major successes over the past two decades, including several record recoveries for the government and the firm’s clients. In total, our representations have led to more than $1 billion in government and whistleblower recoveries, in addition to over $5 billion recovered for the firm’s other clients.

Read Constantine Cannon LLP and Partner Ankur Kapoor Recognized In Chambers USA Guide 2025, Antitrust: Mainly Plaintiff Rankings at constantinecannon.com