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Innovative. Integrated. Industry-Focused.

World-class regulatory, litigation and transactional solutions for your most complex challenges.

Innovative. Integrated. Industry-Focused.

World-class regulatory, litigation and transactional solutions for your most complex challenges.

News Artificial Intelligence July 13, 2026

Arnold & Porter Strengthens AI Leadership, Appoints Roger Maeda as the Firm’s First Chief Artificial Intelligence Officer Learn More

News Privacy, Cybersecurity & Data Strategy July 7, 2026

Prominent Tech Litigator Sunita Bali Joins Arnold & Porter in San Francisco, Continuing West Coast Expansion Learn More

News Mergers & Acquisitions July 9, 2026

Arnold & Porter Advises Aurobindo Pharma in FTC Clearance for Acquisition of Lannett Company Learn More

News Labor & Employment July 1, 2026

Daily Journal Names Dipanwita Deb Amar and David Reis to 2026 ‘Top Labor & Employment Lawyers’ List Learn More

News Environmental Enforcement & Toxic Tort Litigation June 29, 2026

Arnold & Porter Represents Chemours in First Comprehensive Federal PFAS Settlement Learn More

News Intellectual Property June 29, 2026

Managing IP Names Four Arnold & Porter Lawyers as Western Europe IP Stars Learn More

Media Mention Trials July 2, 2026

Arnold & Porter’s Trial School Spotlighted in The National Law Journal Learn More

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The GENIUS Act and Stablecoin Regulation Resource Center Learn More

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Middle East Crisis: Navigating the Conflict with Iran Learn More About Our Strategic Advisory and Counsel Services

Arnold & Porter by the Numbers

107K+

2025 Total Pro Bono Hours

Offices Worldwide

173

Chambers-Ranked Lawyers