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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 August 13, 2026

BTI Consulting Group Names Four Arnold & Porter Attorneys 2026 'BTI Client Service All-Stars' Learn More

News August 12, 2026

The American Lawyer Names Arnold & Porter Among Top 10 on 2026 A-List Learn More

News Life Sciences & Healthcare Regulatory August 18, 2026

Arnold & Porter Secures Precedential Tenth Circuit Victory for AstraZeneca in PREP Act Immunity Case Learn More

News Crisis Management & Strategic Response August 11, 2026

NJBIZ Names Paul Fishman to 2026 Law Power List Learn More

News Crisis Management & Strategic Response August 11, 2026

Chambers Again Recognizes Arnold & Porter as a Leading Crisis Management Firm Learn More

News Latin America and the Caribbean August 10, 2026

Latin Lawyer Recognizes Arnold & Porter Mergers & Acquisitions Lawyers in 2025 Deal Tracker Learn More

Seminar/Conference Global Life Sciences September 23, 2026

UK & EU Annual Life Sciences Conference 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

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