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Innovative. Integrated. Industry-Focused.

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

  • Regulatory

    Sector-specific expertise to support virtually every aspect of your regulated business activities.

  • Litigation

    Combining creative litigation strategies with business practicality to resolve high-stakes disputes.

  • Transactional

    Trusted advisors for our clients' most complex transactions.

Innovative. Integrated. Industry-Focused.

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

  • Regulatory

    Sector-specific expertise to support virtually every aspect of your regulated business activities.

  • Litigation

    Combining creative litigation strategies with business practicality to resolve high-stakes disputes.

  • Transactional

    Trusted advisors for our clients' most complex transactions.

News Intellectual Property May 21, 2026

Daily Journal Names Deborah Fishman and Tom Magnani to 2026 ‘Top Intellectual Property Lawyers’ List Learn More

Video

Take a Peek Into Our New Offices in Chicago, Houston, and San Francisco Learn More

eData Edge eDiscovery & Data Analytics May 19, 2026

Court Rules Expert’s AI Prompts Are Fair Game Under Rule 26 Learn More

News May 21, 2026

Massachusetts Lawyers Weekly Recognizes Josh Barlow as a 2026 Leader in the Law Learn More

Featured Topic

The GENIUS Act and Stablecoin Regulation Resource Center Understand The Future Of Digital Currency Policy — Learn More

News Global Law & Public Policy May 13, 2026

U.S. Chamber of Commerce and Brazilian National Confederation of Industry Recognize Ambassador Thomas A. Shannon, Jr. with Brazil–U.S. Industry Award Learn More

Presentation Global Life Sciences June 16, 2026

Part I: Biotech Deals — Creating Optimal Licensing and Partnering Arrangements Learn More and Register

News Commercial Litigation May 12, 2026

Arnold & Porter Secures Complete Victory for NRCO in LNG Project Arbitration Learn More

Featured Topic

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

Further Reading

Arnold & Porter by the Numbers

107K+

2025 Total Pro Bono Hours

16

Offices Worldwide

164

Chambers-Ranked Lawyers