LAWYER PROFILE
Donald J Toumey

Donald J Toumey

Global 2026

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Ranked in 1 practice area

About

Provided by Sullivan & Cromwell LLP

Practice Areas

General Practice

Asia

Australia/New Zealand

Bank Regulatory

Broker-Dealer

Corporate Governance

Crisis Management

Economic Sanctions and Financial Crime

Financial Services

Financial Services Investigations & Litigation

Financial Services Mergers & Acquisitions

Career

Donald J. Toumey is a partner in the Firm’s General Practice/Corporate Law Group with a practice focused on banking, securities and financial institutions law. Mr. Toumey has advised on numerous major bank mergers and acquisitions, as well as bank acquisitions of investment management and investment banking firms. He has handled applications to, and requests for legal interpretations from, federal and state banking agencies for U.S. and non-U.S. banking organizations. He has extensive experience advising U.S. and non-U.S. banking organizations on banking and broker-dealer regulatory matters and on enforcement matters, including with respect to Bank Secrecy Act and Office of Foreign Assets Control issues. He also advises on securities offerings and disclosure matters involving U.S. and non-U.S. banking organizations.

Mr. Toumey is a former special assistant to the general counsel of the U.S. Department of the Treasury.

He is also a member of the Firm’s Diversity Committee.

Professional Memberships

ABA; Federalist Society; NYCBA

Personal

Yale Law School (J.D., 1981); Williams College (B.A., 1978); Judicial clerk to The Honorable Walter R. Mansfield, United States Court of Appeals, Second Circuit (1981 - 1982)

Chambers Review

Provided by Chambers

Chambers Global Guide

Banking & Finance: Mainly Regulatory - USA

Band 3
Band 3

Individual Editorial
Donald Toumey stands out for his extensive expertise in US banking law. He regularly advises clients on the full spectrum of compliance matters, including regulatory challenges emerging from the Bank Secrecy Act and OFAC sanctions.

Strengths

Provided by Chambers

  • His industry perspective is invaluable and critical to providing a broader perspective on emerging issues.

    Banking & Finance: Mainly RegulatoryChambers Global Guide
  • He's a key part of the team no matter the topic.

    Banking & Finance: Mainly RegulatoryChambers Global Guide

Ranked Individuals at Sullivan & Cromwell LLP (103)

Australia

Belgium

China

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France

Germany

Italy

Japan

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