International Trade: Export Controls & Economic Sanctions
USA Guide 2026 : USA - Nationwide
Rankings

Ranked Individuals
Ranked Individuals
About
Provided by O'Melveny & Myers LLP
O’Melveny’s International Trade and Investment Regulation practice helps clients maximize cross-border opportunities while minimizing compliance-related risk. Years in private practice and public service back our counsel to clients; our team features lawyers whose experience includes high-level positions in the White House, US Departments of Commerce, State, and Justice, the Securities and Exchange Commission, various US Attorney’s offices, and the US International Trade Commission, among other organizations.
- Export Controls and Economic Sanctions. Our team helps clients tackle proactive compliance issues as well as enforcement matters involving international trade controls.
- Regulation of Foreign Investments. Drawing on decades of experience in private practice and senior government positions, we regularly serve as counsel to US and non-US parties in transactions considered by the Committee on Foreign Investment in the United States (CFIUS), the Defense Security Service, and other federal and state authorities.
- International Trade Policy. We provide strategic counsel to clients who wish to understand more deeply or to advocate for change in international trade and investment policies or rules that are critical to their businesses.
- Trade Remedies. We have broad experience handling a variety of trade administrative and enforcement matters, including antidumping and countervailing duty investigations, safeguard, national security, and “Section 301” cases.
Industries (9)
- Consumer Electronics
- Energy
- Energy
- Fintech
- Insurance
- Manufacturing
- Real Estate
- Technology
- Telecommunications
Chambers Review
Provided by Chambers
Work Highlights
Provided by Chambers
O'Melvny & Myers represented Cepton in securing CFIUS clearance of its acquisition by Koito Manufacturing, an automotive supplier headquartered in Japan.
Strengths
Provided by Chambers
O'Melvny & Myers is very knowledgeable, insightful and has a good depth of experience. Its team is very savvy and I'm very pleased with the work they have done.
International Trade: Export Controls & Economic Sanctions respondentUSA
Notable Practitioners
Provided by Chambers
Senior Statespeople 
Senior Statespeople 
Theodore Kassinger
Theodore Kassinger continues to be recognized as a leading light in the CFIUS arena. Band 1 
Band 1 
Greta Nightingale
Greta Nightingale has an impressive trade practice which sees her handle complex sanctions matters, among other issues. She also works on CFIUS matters. Greta is able to step away from the legal jargon and explain in plain English.
International Trade: Export Controls & Economic Sanctions respondentUSAGreta is an exceptional attorney and master of her subject matter area. She is a go-to consult on sanctions and export control matters.
International Trade: Export Controls & Economic Sanctions respondentUSAGreta has a great depth of knowledge and provides practical advice.
International Trade: Export Controls & Economic Sanctions respondentUSA
Band 4 
Band 4 
David Ribner
David Ribner undertakes work on behalf of clients from a range of sectors. He focuses on CFIUS-related issues. David delivers outstanding work, se is extremely dedicated to the engagement and flexible in meeting our call requests. He provides valuable insights to the inner workings of a CFIUS review, and shares timely updates on recent developments of regulatory attitudes.
International Trade: Export Controls & Economic Sanctions respondentUSADavid is very personable and gives clear, fast and accurate answers.
International Trade: Export Controls & Economic Sanctions respondentUSA
Ranked Individuals at O'Melveny & Myers LLP (4)
Members
Provided by O'Melveny & Myers LLP

Arthur B. Culvahouse

Steve Bunnell

Thomas E. Donilon

Greta Nightingale
View profile of Greta Nightingale
David Ribner
View profile of David Ribner
Theodore Kassinger
View profile of Theodore Kassinger
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