LAWYER PROFILE
Brendan P Cullen

Brendan P Cullen

USA 2026

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Ranked in 1 practice area

About

Provided by Sullivan & Cromwell LLP

Practice Areas

Litigation, Securities Litigation, Antitrust, Criminal Defense & Investigations, FCPA & Anti-Corruption, Intellectual Property & Technology Litigation

Career

Brendan Cullen is a partner in S&C’s Litigation Group. He has litigated a broad range of matters, including complex securities, commercial, intellectual property and antitrust cases, frequently with a substantial technological element. He has advised and represented clients in arbitrations, in cases in state and federal trial courts and on appeals before state and federal appellate courts, including the U.S. Supreme Court. He also has conducted numerous confidential internal investigations, including investigations related to issues of corporate governance, securities matters and Foreign Corrupt Practices Act compliance, and involving numerous countries throughout Asia, Europe, the Middle East, and Latin America. Brendan’s corporate clients have included Australia and New Zealand Banking Group, BHP Billiton, Caterpillar, Cutera, Dolby International AB, EchoStar, Goldman Sachs, Intel, Madison Square Garden, Meta, Microsoft, Philips Electronics, Rolls-Royce, Tenaris, UBS, Verifone, Vista Equity Partners, Wells Fargo and X.AI. Brendan co-led the team at S&C that partnered with Stanford Law School to launch the Foreign Corrupt Practices Act Clearinghouse, a public database that aggregates and curates source documents and provides analytic tools related to enforcement of the FCPA since its enactment.

Clerk, Hon. Clarence Thomas, United States Supreme Court.

Clerk, Hon. Laurence H. Silberman, United States Court of Appeals, District of Columbia Circuit.

Professional Memberships

Co-chair, The Campaign for Legal Services; Member, Stanford Law School Dean’s Advisory Council; Member, National Leadership Council, Positive Coaching Alliance.

Personal

Stanford Law School (JD, 1995); University of Oregon (BA, 1991).

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Litigation: Securities - California

Band 4
Band 4

Individual Editorial
Brendan Cullen is frequently called upon by clients in the financial services and technology industry to handle securities disputes, as part of a wide-ranging commercial litigation practice. He also counsels clients on regulatory enforcement and investigations.

Strengths

Provided by Chambers

  • Brendan is a capable guy who contributes to the legal community.

    Litigation: SecuritiesChambers Guide to the USA

Ranked Individuals at Sullivan & Cromwell LLP (144)

California

California: Los Angeles & Surrounds

California: San Francisco, Silicon Valley & Surrou

District of Columbia

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