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    Home /  Lawyers /  Samuel W. Seymour

    Samuel W. Seymour

    Of Counsel

    Samuel W. Seymour Headshot Photo Portrait backdrop

    New York

    +1-212-558-3156

    |

    seymours@sullcrom.com

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    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)
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    • Experience
    • Rankings and Recognitions
    • News
    • Publications, Videos and Podcasts
    • Credentials
    • Related Practices
    Experience

    Experience

    • 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
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    Rankings and Recognitions

    Rankings and Recognitions

    • Chambers USA – recognized in Nationwide Financial Services Regulation: Banking (Enforcement & Investigations) (2021-2023); recognized in New York Litigation: White Collar Crime & Governmental Investigation (2021-2023)
    • Lawdragon – Recognized as one of the “500 Leading Litigators in America” (2024)
    • Who’s Who Legal: Business Crime Defense (2022)
    • Who’s Who Legal: Thought Leaders in Investigations (2022)

    • Brooklyn Volunteer Lawyers Project, Dedication to Justice Award (2015)
    • Federal Bar Council, Whitney North Seymour Award, for public service by a private practitioner (2015)
    • New York County Lawyers' Association, President’s Medal (2014), for authorship of Commercial Litigation Treatise
    • Robert M. Morgenthau Award, Police Athletic League, for distinguished legal career (2009)
    • Milton S. Gould Award for Outstanding Oral Advocacy – Office of the Appellate Defender (2008)
    • John J. McCloy Award - Fund for Modern Courts (2007)
    • Expert Guides – recognized in White Collar Crime
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    News

    News

    • Sam Seymour Speaks at PLI Webinar on Internal Investigations for CFEs

      April 16, 2021
    • S&C Partners Nic Bourtin and Sam Seymour Lead Compliance and Regulatory Discussions at SIFMA C&L Annual Seminar

      March 24-27, 2019
    • SIFMA C&L Annual Seminar

      March 19, 2018
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    Publications, Videos and Podcasts

    Publications, Videos and Podcasts

    • S&C Litigators Author Chapters in Business and Commercial Litigation in Federal Court

      Books January 18, 2021
    • S&C Litigators Author Chapters in Commercial Litigation in New York State Courts

      Books October 28, 2020
    Read More
    Credentials

    Credentials

    Education

    • Columbia Law School, J.D., 1982
    • Dartmouth College, A.B., 1979

    Bar Admissions

    • New York
    Read More
    Related Practices

    Related Practices

    • Litigation
    • Bank Regulatory
    • Congressional Investigations
    • Corporate Culture, Workplace Investigations & Whistleblower Litigation
    • Criminal Defense & Investigations
    • Economic Sanctions and Financial Crime
    • FCPA & Anti-Corruption
    • Financial Services
    • Financial Services Investigations & Litigation
    • Foreign Investments and Trade Regulations
    • General Practice
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