Debevoise & Plimpton


Head Office Address:
919 Third Avenue
New York, NY 10022
United States

Telephone:+1 212 909 6000
Fax:+1 212 909 6836

Regularly hailed as one of the strongest litigation teams in the industry, the Debevoise litigation practice has been described by The American Lawyer as akin to “the Army Rangers—a small but elite group that works seamlessly and handles the most challenging cases,” consistently delivering outstanding results for its clients.

Recent matters include:

  • Secured a historic $6 billion ICSID arbitration win for Tethyan Copper Company Pty Limited
  • Represented the Board of CBS Corporation in an investigation of sexual harassment allegations against the CEO and senior personnel
  • Reached a resolution with the DOJ and EPA for Toyota’s emissions reporting practices without any criminal charges being filed
  • Represented in a Supreme Court case where the Court ruled 8-1 that’s eponymous domain name is not generic and could register as a trademark
  • Responded to a significant data breach for Capital One and conducted a related investigation for the bank’s Board
  • Represented Robinhood in SEC and FINRA settlements relating to best execution practices and payment for order flow
  • Secured a $75 million bench trial victory for Resolution Life in the NY Supreme Court stemming from an M&A transaction
  • Secured a $327 million victory in a dispute for D. E. Shaw / TERP in the NY Supreme Court on claims for breach of contract and damages from the sale of First Wind Holdings
  • Helped get relief in federal courts for nearly 30 inmates serving onerous sentences resulting from outdated mandatory sentencing provisions that were disproportionately invoked against Black men
  • Successfully represented Qatar and Qatari entities and individuals in claims arising from measures imposed by UAE, Saudi Arabia, Bahrain, and Egypt against Qatar, twice prevailing before the International Court of Justice
  • Defended Iraq against investor-state claims in Itisaluna resulting in an award 70% of attorney fees and costs; also prevailed in Iraq’s ICSID arbitration against Agility, knocking out claims of $650 million and obtaining an award of costs and interest
  • Secured a record-breaking $400 million victory on behalf of Perenco Ecuador in the final phase of its 13-year-long dispute against the Republic of Ecuador
  • Protected  the World Health Organization’s (WHO) immunity under international and U.S. law in class actions in U.S. court challenging the WHO’s response to the COVID-19 pandemic.

The firm’s litigation practice is led by co-chairs Mary Beth Hogan and Andrew Ceresney (the immediate past Director of Enforcement at the SEC) and features an all-star roster, including former Attorneys General Lord Peter Goldsmith QC and Michael Mukasey and former Chair of the SEC Mary Jo White, who returned to Debevoise in 2017 following her four-year tenure. Ms. White,  who previously served as U.S. Attorney for the Southern District of New York for nine years, is Senior Chair of the firm and leads the Strategic Crisis Response and Solutions Group.

Their team also includes 14 former Assistant U.S. Attorneys or Department of Justice attorneys, including a former federal district court judge, the former Chief of the Criminal Division of the Southern District of New York, the former Acting Assistant Attorney General for the DOJ Criminal Division, the former Deputy Assistant Attorney General for National Security and three former Unit Chiefs of the SEC’s Division of Enforcement.

The breadth of experience offered by Debevoise in and out of the courtroom sets their litigators apart. They bring personal attention, seasoned judgment, deep industry knowledge, credibility and substantive legal experience to each matter, tailoring advice to clients’ needs and circumstances. They work seamlessly and collaboratively with clients and co-counsel and across practices to achieve the best possible results for our clients. 

Based in New York, Washington DC, London, Paris, Frankfurt, Shanghai and Hong Kong, their broadly skilled team of nearly 300 litigators handle domestic and cross-border disputes of every kind and complex matters in courts in the United States, the United Kingdom, Hong Kong, France and elsewhere, as well as before arbitration tribunals, agencies and administrative bodies worldwide. They represent clients as plaintiffs and defendants in a wide range of areas, including:

  • Antitrust & Competition
  • Arbitration & International Disputes
  • Bankruptcy
  • Business Integrity
  • Crisis Management
  • Cybersecurity & Data Privacy
  • Commercial Litigation
  • Insurance Industry Disputes
  • Intellectual Property
  • Internal Investigations
  • Labor & Employment Litigation
  • Product Liability
  • Securities Enforcement
  • Securities Litigation
  • Trial Practice
  • White Collar & Regulatory Defense

Another notable and distinguishing feature of the Debevoise litigation practice is the success of their women partners. For five consecutive years, Benchmark Litigation has named eight Debevoise women litigation partners among the “Top 250 Women in Litigation”—an exceptional ranking for a firm of its size.

Frankfurt: +49 69 2097 5000

Hong Kong: +852 2160 9800

London:  +44 20 7786 9000

Luxembourg: +352 27 33 54 00

Moscow: +7 495 956 3858

Paris: +33 1 40 73 12 12

Shanghai: +86 21 5047 1800

San Francisco: +1 415 738 5700

Tokyo: +81 3 4570 6680

Washington, D.C. : +1 202 383 8000


Updated Sep 2021