Samuel W Seymour

(The following information was supplied by the firm)

Sam Seymour is a member of Sullivan & Cromwell’s Criminal Defense and Investigations Group. He concentrates in white-collar criminal defense, regulatory enforcement matters and internal investigations.

Mr. Seymour has represented clients in many high-profile investigations involving allegations of accounting fraud, securities fraud, foreign bribery, price fixing, economic sanctions violations, money laundering and obstruction of justice. He represents individuals and institutions in enforcement matters across a broad range of financial and industrial business sectors worldwide.

Mr. Seymour’s practice also encompasses commercial litigation and arbitration matters, including derivative cases, shareholder actions and complex contract disputes.

Widely recognized for his professional achievements, Mr. Seymour has held leadership positions in numerous organizations serving the legal and educational communities. Mr. Seymour served as President of the New York City Bar Association (2010-2012).

Government Service 

Mr. Seymour served as an Assistant U.S. Attorney and deputy chief appellate attorney in the Southern District of New York from 1988 through 1991.

Professional Activities and Community Involvement

Widely recognized for his professional achievements, Mr. Seymour is a member of numerous organizations serving the legal and educational communities.

Educational and Public Service

  • Columbia Law School – Board of Visitors
  • Columbia Law School – Associate in Law, Trial Advocacy Seminar (1998-2004)
  • Packer Collegiate Institute – former Trustee (2001-2010) and former Board Chair
  • Office of the Appellate Defender – former Director (1990-2010)
  • Sylvester Manor Educational Farm, Inc. (Shelter Island, NY) – former Director (2011-2018)
  • Practising Law Institute – Trustee
  • New York City Riot Relief Fund – Trustee
  • American College of Sofia (Bulgaria) – Trustee

Legal Service

  • New York City Bar Association – President (2010-2012), former Vice President and Chair of Executive Committee
  • Chief Judge Jonathan Lippman’s Committee on Non-Lawyers and the Justice Gap – Member
  • New York Council of Defense Lawyers – Member
  • American Law Institute – Member
  • First Department Disciplinary Committee (2006-2010)
  • New York City Bar Justice Center, Board Chair (2006-2009)



  • Handled the resolution of government investigations for Danske Bank A/S, The Bank of New York, Spiegel, Inc., UBS, Bankers Trust Company, Statoil ASA, Moody’s Investors Service, Assicurazioni Generali S.p.A., HSBC, Banco Popular de Puerto Rico, ANZ Bank, Deutsche Bank, Morgan Crucible plc, Lloyds TSB Bank, Standard Chartered Bank, U.S. Bancorp, ABN AMRO and Wachovia Bank, among many others
  • Served as lead trial counsel in 15 criminal jury trials in federal courts. Argued numerous appeals in the Second Circuit
  • Conducted numerous internal investigations for corporations, financial institutions and audit committees

Sign In

[login_form] Lost Password