A&O Shearman earns 137 rankings in Chambers USA 2025

The breadth of these 2025 rankings showcases the market-leading capabilities of A&O Shearman teams working in all major areas of practice.

Our continued growth in New York, Boston, Washington, D.C., Texas, and California is reflected in Chambers’ recognition of a total of 15 new practice and individual rankings highlighting our strong presence in key markets. The outstanding performance of our individual attorneys demonstrates the remarkable legal talent at A&O Shearman. 

“Congratulations to our exceptional teams and practitioners on this well-deserved recognition of our market-leading client service across so many practices in the U.S.,” said Adam Hakki, co-chair of our global Executive Committee and Board and U.S. chair. “These rankings underscore the depth and breadth of our capabilities across all key practice areas and the strength and impact of A&O Shearman as a unified, global leader in the legal industry.” 

A&O Shearman received Band 1 rankings in the following practice group categories:

USA Nationwide: Corporate Crime and Government Investigations: Highly Regarded

USA Nationwide: Mining and Metals

USA Nationwide: Projects: Mining and Metals

USA Nationwide: Projects: Agency Financing

New York: Bankruptcy/Restructuring: The Highly Regarded

New York: Environment: Mainly Transactional

Texas: Litigation: Securities

The firm was also highly ranked in the following:

USA Nationwide: Banking and Finance

USA Nationwide: Capital Markets: Equity: Manager Counsel

USA Nationwide: Capital Markets: High-Yield Debt

USA Nationwide: Capital Markets: Investment Grade Debt: Issuer Counsel

USA Nationwide: Capital Markets: Investment Grade Debt: Manager Counsel

USA Nationwide: Capital Markets: Securitization: CLOs

USA Nationwide: Corporate/M&A: The Elite

USA Nationwide: Derivatives

USA Nationwide: Employee Benefits and Executive Compensation

USA Nationwide: Energy Transition

USA Nationwide: Environment: Mainly Transactional

USA Nationwide: Financial Services Regulation: Banking (Compliance)

USA Nationwide: Financial Services Regulation: Broker Dealer (Compliance and Enforcement)

USA Nationwide: International Arbitration: Highly Regarded

USA Nationwide: Projects: PPP

USA Nationwide: Projects: Power and Renewables: Transactional

USA Nationwide: Projects: Renewables and Alternative Energy

USA Nationwide: Securities: Litigation

USA Nationwide: Tax: Corporate and Finance

California: San Francisco, Silicon Valley and Surrounds: Corporate/M&A: The Elite

California: Technology: Transactions

District of Columbia: Antitrust

District of Columbia: Litigation: General Commercial: Highly Regarded

District of Columbia: Litigation: White-Collar Crime and Government Investigations

New York: Antitrust

New York: Banking and Finance

New York: Corporate/M&A: The Elite

New York: Employee Benefits and Executive Compensation

New York: Intellectual Property: Patent

New York: Litigation: General Commercial: Highly Regarded

New York: Litigation: Securities

New York: Litigation: White-Collar Crime and Government Investigations: The Elite

New York: Real Estate: Mainly Corporate and Finance

New York: Real Estate: Mainly Dirt

New York: Tax

Texas: Austin and Surrounds: Litigation: General Commercial

Texas: Bankruptcy/Restructuring

Texas: Capital Markets: Debt and Equity

Texas: Corporate/M&A: The Elite

Texas: Technology: Corporate and Commercial

The 81 lawyers who received 90 individual rankings include:

Adam B. Schwartz, Adam S. Hakki, Agnès Dunogué, Alain A. Dermarkar, Alex Touma, Amelia Memmi Rasmussen, Anna Rudawski, Azam Aziz, Augusto Ruiloba, Bill Nelson, Brian Jebb, Carmelo Gordian, C. Luckey McDowell, Chris Ryan, Clare O'Brien, Creighton Condon, Cynthia Urda Kassis, Daniel Gold, Daniel LaGuardia, Daniel Lewis, Daniel R. Mitz, Daren M. Orzechowski, David Esseks, David Higbee, David Whittlesey, Donna Parisi, Doreen Lilienfeld, Elaine Hughes, Elaine Johnston, Elizabeth Holland, Emily Westridge Black, Eugene Ingoglia, Felise Cooper, Fredric Sosnick, Geoffrey B. Goldman, Gregory Mocek, Ilir Mujalovic, James Bryson, Jason Pratt, Jean Lee, Jennifer Morton, Jessica K. Delbaum, Jillian Ashley, John (Sean) Finley, John J. Cannon, John Nathanson, Julian Moore, Katherine Stoller, Ken Rivlin, Kent Rowey, Lawrence Berkovich, Lena Kiely, Lisa Brill, Lona Nallengara, Lorenz Haselberger, Lyle Roberts, Maura O'Sullivan, Maura Rezendes, Mallory Tosch Hoggatt, Maria Christopher Bell, Mark Lanpher, Michael Dorf, Michael K. Chernick, Nicholas Mitrokostas, Paul Astolfi, Paul Epstein, Rachel Mossman Zieminski, R Jake Mincemoyer, Robert J. Cardone, Ryan Bray, Sami Mir, Samuel W. Cooper, Saul Perloff, Scott Petepiece, Stephen Fishbein, Taylor Landry, Thad Behrens, Thomas Makin, Thomas M. Majewski, Todd Koretzky, Todd Stenerson.

See a complete list of A&O Shearman’s Chambers USA 2025 rankings here.

Based in London, Chambers and Partners ranks leading U.S. firms and attorneys based on in-depth research and interviews with attorneys’ clients and peers. Chambers assesses attorneys on attributes most valued by clients, including technical legal ability, professional conduct, client service, commercial astuteness, diligence, and commitment. Most attorneys are ranked in bands of 1-6, with all band rankings considered to be a significant achievement.