Paul, Weiss, Rifkind, Wharton & Garrison LLP

Paul, Weiss, Rifkind, Wharton & Garrison LLP has a long-established practice with a focus on antitrust defense litigation, merger clearance, and regulatory investigations. The group brings experienced litigators and former regulators with backgrounds in civil and criminal proceedings. The team's work covers cartel investigations, monopolization and unfair competition claims, and merger-related disputes, including matters that proceed to trial, which remain uncommon in this area. Key practitioners include Aidan Synnott, who spans antitrust litigation and merger clearance, and deputy co-chair Brette Tannenbaum, who focuses on antitrust and unfair competition disputes alongside investment management litigation. Staci Yablon advises on antitrust disputes and regulatory investigations, as well as broader commercial and securities matters. Katherine Forrest, a former US district judge and former senior official in the DOJ’s Antitrust Division, leads antitrust and technology-related litigation and investigations. William Michael focuses on civil and criminal antitrust investigations and private litigation. Deputy co-chair Eyitayo St. Matthew-Daniel advises on antitrust litigation, investigations, and multi-jurisdictional regulatory clearance work across global jurisdictions. All lawyers mentioned are based in New York.