Arnold & Porter
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Leading firm in Global 2026
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Overview
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Global Co-Chairs: Michael D Daneker and Ellen Kaye Fleishhacker. With over 1,000 lawyers in 16 offices, Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues. We offer an integrated approach spanning more than 40 practice areas. Through multidisciplinary collaboration and focused industry experience, we provide innovative and effective solutions to mitigate risks, address challenges, and achieve successful outcomes.
Ranked Offices
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USA - Head office
District of Columbia
601 Massachusetts Avenue, NW , Washington, DC, District of Columbia, USA, 20001-3743, Washington, DC
Belgium
Brussels Capital Region
1, Rue du Marquis, Markiesstraat, 1, Brussels, Brussels Capital Region, Belgium, B-1000, Brussels
China
Shanghai
Suites 3806-3811, CITIC Square 1168 Nanjing Xi Rd , Shanghai, Shanghai, China, 200041, Shanghai
South Korea
Seoul
Seoul Finance Center, Floor 21, 136 Sejong-Daero, Jung-Gu, Seoul, Seoul, South Korea, 04520, Seoul
UK
Greater London
Tower 42, 25 Old Broad Street , London, Greater London, UK, EC2N 1HQ, London
USA
Illinois
70 West Madison Street, Suite 4200, Chicago, Illinois, USA, IL 60602-4231, Chicago
Colorado
1144 Fifteenth Street Suite 3100 , Denver, Colorado, USA, CO 80202-2848, Denver
New York
250 West 55th Street , New York, New York, USA, NY 10019-9710, New York
California
4 Embarcadero Center, 14th Floor , San Francisco, California, USA, 94111, San Francisco
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Arnold & Porter
Top figures
16
Offices
1,000
Employees
1946
Established in
Key people
Capabilities
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