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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 October 24, 2025

The Legal 500 Latin America 2026 Recognizes Arnold & Porter Lawyers, Practices Learn more

News Corporate & Finance October 24, 2025

Chambers Brazil 2025 Again Recognizes Arnold & Porter’s Banking and Finance Capabilities Learn more

News October 20, 2025

Financial Times Innovative Lawyers Awards Shortlists Arnold & Porter for Pro Bono Work in Federal Prison Abuse Case Learn more

News Financial Services October 17, 2025

Arnold & Porter Advises First Citizens Bank in Acquisition of 138 New Branches Learn More

News Intellectual Property October 23, 2025

IAM Global Leaders 2026 Recognizes Deborah Fishman, David Marsh, and Matthew Wolf Learn more

News Artificial Intelligence October 23, 2025

BTI Consulting Group Recognizes Arnold & Porter Among Top Litigation Firms in BTI Litigation Outlook 2026 Learn more

Webinar White Collar October 28, 2025

A New DOJ Approach to Trade Enforcement: Old Tools Used for New Policies Learn more and register here

Video Series Inside Litigation

Watch our latest video series where our global litigation group shares brief insights on hot topics in complex litigation. Watch and learn more

Topic Administrative Law & Regulatory Litigation

The Second Trump Administration: Insights on New Executive Actions Learn more

Arnold & Porter by the Numbers

100K+

2024 Total Pro Bono Hours

Offices Worldwide

167

Chambers-Ranked Lawyers