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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 Corporate, Europe October 1, 2026

The Legal 500 UK 2027 Recognizes 15 Arnold & Porter Practices, 10 Lawyers Learn More

News Korea September 30, 2026

Arnold & Porter Obtains Victory for the Republic of Korea in Second Dayyani Investment Treaty Arbitration Learn More

News Intellectual Property September 23, 2026

IAM/WTR Copyright 1000 2026 Recognizes Arnold & Porter’s Copyright Capabilities Learn More

News Financial Services September 28, 2026

Arnold & Porter Advises BCB Bancorp in Definitive Agreements to Sell Problem Loan Portfolios Watch Here

News Real Estate September 24, 2026

Arnold & Porter Advises Affinius and BH3 in $390M Construction Financing Learn More

Webinar Government Contracts September 28, 2026

CMMC Phase 2 is on Hold, but Cybersecurity Compliance and Enforcement Are Not: What Government Contractors Need to Know Learn More and Register

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