New York


Hong Kong



Los Angeles

Palo Alto

São Paulo



Washington, D.C.

With a network of approximately 850 attorneys, Simpson Thacher provides coordinated legal advice and representation on some of the largest and most complex transactional and litigation matters in the world. Our headquarter offices in New York City work in tandem with our offices in Beijing, Hong Kong, Houston, London, Los Angeles, Palo Alto, São Paulo, Seoul, Tokyo and Washington, D.C. to provide highly integrated transactional and litigation expertise. The Beijing, Hong Kong and Tokyo offices are staffed with U.S. corporate lawyers and serve both local clients and the local practice of our large U.S. corporate clients. Our London office houses both U.S. and English lawyers, including corporate attorneys and U.S. litigators advising on European competition law and other matters.