Martine M. Beamon
  1. Partner

Ms. Beamon, a partner in Davis Polk’s Litigation Department and a former federal prosecutor, has successfully represented individuals and institutions in their most critical situations. She is recognized by Chambers USA as a Band 1 lawyer for her work in the white collar and investigations space, with clients describing her as a “phenomenal lawyer” who is “very smart” and “incredibly strong” and who won praise for her handling of a number of “sophisticated cases.”

Her matters have included grand jury, regulatory and independent investigations, representing companies, board of directors and individuals in connection with allegations of sexual misconduct, securities fraud, criminal tax violations, foreign corrupt practices, anti-money laundering and pharmaceutical marketing violations, among other areas. Her complex civil matters have involved allegations under the False Claims Act, consumer protection and whistleblower provisions, and other state and federal statutes. Ms. Beamon also has participated in a number of confidential internal investigations on behalf of clients and has advised corporations and boards of directors on matters of corporate governance and compliance. In addition, the FBI requested that she train its agents on insider trading.

Ms. Beamon served as an Assistant U.S. Attorney for the U.S. Attorney’s Office, Southern District of New York, where she conducted numerous investigations and criminal trials.

Work Highlights

  • Boards, companies and individuals on workplace misconduct matters, including highly sensitive investigations, cultural assessments, crisis management and related compliance
  • A Fortune 100 company in connection with sensitive allegations of sexual misconduct
  • Acting CEO of a major not-for-profit organization in congressional investigations into sexual abuse
  • Major professional services firms, financial institutions and other companies in investigations involving the Department of Justice, the SEC and other regulators
  • The Swiss Bank, Neue Privat Bank, in its landmark resolution with the DOJ, the first non-prosecution agreement and lowest fine for a Category 1 Swiss Bank 
  • A major financial institution in connection with an FCPA investigation involving hiring practices
  • A major financial institution in connection with an SEC inquiry into its bank-managed and advisory accounts in mutual funds and sales of structured products
  • A medical device company in connection with a DOJ investigation into sales and marketing practices
  • A financial institution in connection with an investigation by the SEC and FINRA into blue sheet reporting
  • A high-frequency trading firm in connection with an SEC multidisciplinary inquiry relating to the high-frequency trading industry, which ended without enforcement action
  • Numerous broker-dealers, hedge funds and other financial institutions in an array of investigations relating to alleged insider trading, market manipulation, improper short selling, and other transgressions
  • A major financial institution in connection with an SEC inquiry into the practices of one of its electronic trading platforms
  • A major professional services firm in connection with investigations by DOJ and the SEC
  • The former Chief Compliance Officers of two major financial institutions in connection with federal criminal and state regulatory investigations
  • The special committee of the board of directors of a healthcare company in an internal investigation
  • Government contractors responding to civil investigative demands ("CIDs") and reporting requirements under the Federal Acquisition Regulation ("FAR") in connection with regulatory approvals and contracting issues
  • Major pharmaceutical companies in a number of matters, including federal grand jury investigations relating to FDA issues, as well as related civil and regulatory matters, including a civil suit under the False Claims Act

Because of the nature of Ms. Beamon's assignments, many of her most successful matters have not resulted in public charges and remain confidential.


Ms. Beamon is consistently recognized for her work in the legal industry, including:

  • Chambers USA – Band 1, White Collar Crime and Government Investigations
  • Benchmark Litigation – "Star": National and New York; "Top 250 Women in Litigation"
  • Legal 500 U.S. – Leading Individual: Corporate Investigations and White Collar Criminal Defense: Advice to Corporates
  • Lawdragon 500 Leading Lawyers in America – Litigation, esp. Investigations & Regulatory Enforcement, 2021
  • Euromoney LMG Americas Women in Business Law Awards – “Best in White Collar,” 2020
  • Crain’s New York Business – "Notable Women in Law," 2019
  • New York Business Journal – "Women of Influence," 2018
  • The National Trial Lawyers – "Top 100 Criminal Defense Trial Lawyers in New York", 2018
  • Ethisphere – "Attorneys Who Matter," 2014
  • Best Lawyers in America
  • Who's Who Legal – International

Of Note

  • Global Advisory Board Member, Women in Law Empowerment Forum
  • Member, Lawyers Committee, Innocence Project 
  • Member, Board of Directors, Federal Defenders of New York
  • Member, Board of Directors, Prisoners’ Legal Services of New York
  • Member, Lawyers Council, Citizens Crime Commission of New York City
  • Founder, SDNY AUSA Alumnae Group

Professional History

  • Partner, 2004-present
  • Associate, Davis Polk, 1992-1993 and 2000-2004
  • Assistant U.S. Attorney, U.S. Attorney's Office, Southern District of New York, 1995-2000
  • Law Clerk, Hon. Denis R. Hurley, U.S. District Court, E.D. New York, 1993-1995

Bar Admissions

  • State of New York
  • U.S. Court of Appeals, Second Circuit
  • U.S. District Court, E.D. New York
  • U.S. District Court, S.D. New York


  • B.A., University of Notre Dame, 1989
    • with honors
  • J.D., University of Pittsburgh School of Law, 1992
    • summa cum laude
    • Valedictorian
    • Symposium Editor, University of Pittsburgh Law Review