Quinn Emanuel Urquhart & Sullivan, LLP

Quinn Emanuel Urquhart & Sullivan, LLP focuses on defending companies and individuals in contentious competition disputes across the US. The team acts in civil litigation and government investigations involving allegations of price-fixing, monopolization, cartel conduct, and other anticompetitive behavior, across sectors including technology, pharmaceuticals, software, and payment systems. The defense practice is co-led by Kevin Arquit in Washington, DC, who joined the firm in 2024 and brings experience from senior roles in government and major law firms, alongside Sami Rashid in New York and Kevin Teruya in Los Angeles. Rashid represents corporate defendants in antitrust class actions and enforcement proceedings and has led the defense of companies accused of coordinated conduct and market manipulation. Teruya focuses on defense-side antitrust and unfair competition litigation, frequently involving intellectual property issues. Mike Bonanno chairs the firm’s antitrust investigations practice from Washington, DC and co-chairs antitrust defense, with a practice centered on trials and DOJ investigations involving both companies and individuals.