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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 Life Sciences & Healthcare Regulatory October 22, 2026

Dinesh Kumar Joins Arnold & Porter’s Life Sciences & Healthcare Regulatory Practice in Washington, D.C. Learn More

News International Arbitration October 20, 2026

Arnold & Porter Secures Withdrawal of US $600 Million ICSID Claim for Uruguay in Neltume Ports Arbitration Learn More

News Legislative & Public Policy October 22, 2026

National Institute for Lobbying and Ethics Names Sonja Nesbit and Christina Poehlitz as ‘Top Lobbyists’ Learn More

Seminar/Conference Life Sciences Transactions November 17, 2026

Join Arnold & Porter During London Jefferies Global Healthcare Conference and London Life Sciences Week Learn More and Register

News Intellectual Property October 22, 2026

IAM Global Leaders 2027 Recognizes Deborah Fishman, David Marsh, Ewan Townsend, and Matthew Wolf Learn More

News October 15, 2026

Chambers UK 2027 Ranks Arnold & Porter Practices, Lawyers Learn More

Arnold & Porter’s Trial School

Arnold & Porter's Trial School gives associates hands-on experience in the courtroom. Watch how we're preparing the next generation of trial lawyers.

The best way to learn how to try a case is to step into the courtroom.

 

Each year, Arnold & Porter’s Trial School gives associates the opportunity to develop their courtroom skills through an immersive mock trial experience. This year, with guidance from firm partners, participants delivered opening statements and closing arguments, conducted direct and cross examinations of witnesses, argued before a judge, and presented their case to a jury.

 

It was a challenging, hands-on experience designed to prepare the next generation of trial lawyers for the moments that matter, long before they face them in a real courtroom.

 

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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

Further Reading

Arnold & Porter by the Numbers

107K+

2025 Total Pro Bono Hours

16

Offices Worldwide

173

Chambers-Ranked Lawyers