David A. O'Neil

Partner
Washington, D.C.
Tel: +1 202 383 8040
Overview
David O’Neil is Co-Chair of the White Collar & Regulatory Defense Group and managing partner of the Washington, D.C. office. Consistently recognized ... Read Full Biography

Publications

Upcoming Events

Recent Events

  • Navigating New DOJ Enforcement and Congressional Oversight Priorities
    30 September 2026
    Global Investigations Review
    Annual Investigations Meeting New York
    New York, New York
    Speaker: David A. O'Neil
    Speaking Engagements
  • Foreign Corrupt Practices – The First Year of the Trump Administration and Beyond
    12 March 2026
    American Bar Association
    ABA White Collar Crime Institute
    San Diego, California
    Speaker: David A. O'Neil
    Speaking Engagements
  • Point Shaving, Prop Bets and Prosecutors: How Your Organization Can Stay Ahead
    5 March 2026
    Debevoise & Plimpton LLP
    Webcast
    Speaker: Helen V. Cantwell, John Gleeson, David A. O'Neil
    Speaking Engagements
  • Anti-Corruption Year-In-Review 2025
    24 February 2026
    Debevoise & Plimpton LLP
    Anti-Corruption Roundup
    Webcast
    Speaker: Andrew M. Levine, David A. O'Neil, Winston M. Paes, Karolos Seeger, Jane Shvets
    Speaking Engagements
  • Anatomy of a White Collar Crisis: The Interaction Between Legal Strategy and Media Scrutiny in a Corporate Criminal Case
    6 March 2025
    American Bar Association and Criminal Justice Section
    White Collar Crime Institute
    Miami, Florida
    Speaker: David A. O'Neil
    Speaking Engagements
  • Diversity, Equity & Inclusion: What Private Employers Need to Know Now
    7 February 2025
    Debevoise & Plimpton LLP
    Webcast
    Speaker: Jyotin Hamid, Simone S. Hicks, David A. O'Neil, Jane Shvets
    Speaking Engagements
  • FCPA and Anti-Corruption
    6 December 2024
    Practising Law Institute
    White Collar Crime: Prosecutors and Regulators Speak
    New York, New York
    Speaker: David A. O'Neil
    Speaking Engagements
  • Preparing for Bank Investigations, Enforcement and Litigation Regarding the PPP and Other CARES Act Programs
    9 June 2020
    Risk Management Association and Debevoise & Plimpton
    Webinar
    Speaker: David A. O'Neil
    Speaking Engagements
  • W(h)ither English Corporate Criminal Liability?
    13 May 2020
    Debevoise & Plimpton
    Webinar
    Speaker: David A. O'Neil
    Speaking Engagements
  • Kaestner Case and its Ramifications
    12 June 2019
    American Institute of Certified Public Accountants
    AICPA Engage 2019 Conference
    Las Vegas, Nevada
    Speaker: David A. O'Neil, Anna Moody
    Speaking Engagements
  • The New Dawn of Cybersecurity and Related Risks
    15 October 2015
    Latin Lawyer and Global Investigations Review
    Latin Lawyer - GIR 3rd Annual Anti-Corruption & Investigations Conference
    São Paulo, Brazil
    Speaker: David A. O'Neil
    Speaking Engagements
  • Cybersecurity Challenges for Universities: Addressing the Threats from State-Sponsored Actors, Criminals, Terrorists, "Hactavists" and Bullies
    2 October 2015
    Debevoise & Plimpton and Risk Assistance Network + Exchange (RANE)
    Rethinking Risk Management for Universities and Their Boards: Protecting All Stakeholders
    New York, New York
    Speaker: David A. O'Neil
    Speaking Engagements
  • Ethical Issues Facing In-House Counsel at Insurance Companies: Complying with Federal and State Rules
    24 September 2015
    Debevoise & Plimpton

    Legal Ethics Training and Seminar

    Debevoise & Plimpton, New York
    Speaker: Eric Dinallo, Thomas M. Kelly, Marilyn A. Lion, Maeve O'Connor, David A. O'Neil
    Speaking Engagements
  • Knowledge, Willfulness, Intent and Motive: Prosecuting and Defending Mens Rea in White Collar Cases
    10 September 2015
    American Bar Association Criminal Justice Section
    Southeastern White Collar Crime Institute
    Braselton, Georgia
    Speaker: David A. O'Neil
    Speaking Engagements
  • Navigating Investigations in the Global Enforcement Environment
    15 July 2015
    Bloomberg BNA
    Bloomberg BNA Big Law Business Summit
    New York, NY
    Speaker: David A. O'Neil
    Speaking Engagements
  • International Sanctions – Cross-Border Aspects
    30 April 2015
    Crédit Suisse
    Séminaire 2015 de droit bancaire et financier
    Geneva, Switzerland
    Speaker: David A. O'Neil
    Speaking Engagements
  • Bancamerica- 6th Anti Money Laundering Conference
    9-10 April 2015
    The Clearing House – Institute of International Finance

    The Compliance Function Post Financial Crisis: How Leading Banks should respond to the Convergence of AML, Anti-corruption, Fraud, FCPA and Tax Evasion enforcement, and the call for increased personal liability (board members, directors and compliance officers) Continuing the De-Risking Discussion

    The Global Compliance Function Post Financial Crisis: How leading Banks should respond to the convergence of AML, Anticorruption, fraud, FCPA and tax evasion enforcement, and the call for increased personal liability.

    Santo Domingo, Dominican Republic
    Speaker: David A. O'Neil
    Speaking Engagements
  • Continuing the De-Risking Discussion
    30 March 2015
    The Clearing House - Institute of International Finance
    Anti-Money Laundering Colloquium
    The Reagan Center, Washington, DC
    Speaker: David A. O'Neil
    Speaking Engagements
  • Crypto Wars 2.0: How Should The US Balance Privacy and National Security?
    12 March 2015
    Information Technology & Innovation Foundation
    Crypto Wars 2.0: How Should The US Balance Privacy and National Security?
    Washington, DC
    Speaker: David A. O'Neil
    Speaking Engagements
  • Anti-Corruption Enforcement in 2015: What You Need to Know to Protect Your Company
    11 February 2015 12:00 AM Dateline Standard Time
    Speaker: Paul R. Berger, Helen V. Cantwell, Andrew M. Levine, David A. O'Neil, Karolos Seeger, Bruce E. Yannett
    Debevoise Events

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