The Law Offices of Sidney N. Weiss is the premier law firm in the United States concentrating on international trade, transactions, and customs law. The firm was established in 1985 by Sidney N. Weiss, a former trial attorney with the United States Department of Justice. The firm handles matters for a wide range of companies, from Fortune 100 companies to entrepreneurial start-ups. The firm’s practice includes a wide-range of matters in the area of international trade and commerce in compliance and enforcement, corporate and commercial matters, and commercial litigation. The firm is always immediately responsive to the requests of its clients, and is extremely sensitive to the economics and economics of the matter being handled for the client. Cases and matters are not over-staffed and the firm continuously discusses all matters with the client to insure the most efficient allocation of legal services for each matter. The firm is also flexible on its fee structures and, when the matter merits and the client desires, the firm will handle cases on a flat fee or contingency basis instead of an hourly basis. At the Justice Department, Sidney N. Weiss tried many commercial, international trade, and customs cases. Sidney N. Weiss was awarded by written praise by federal judges in their opinions and the Federal judges praised his work in their opinions, the United States Attorney General awarded him the U.S. Department of Justice’s Meritorious Achievement Award, and the Judges of the United States Court of International Trade placed him on that court’s congressionally-mandated Advisory Committee.

Practice Areas

Private International Law; International Trade; Customs Law; International Commercial Transactions; Commercial Litigation in all Courts; Copyright; Licensing; Trademark Law; Telecommunications Law; Intellectual Property


University of California at Los Angeles, J.D., 1974, University of Chicago, A.B., 1971 

Admitted 1974, California; 1975, New York and U.S. Court of Appeals, Ninth Circuit; 1976, U.S. Court of International Trade, U.S. District Court, Southern District of New York and U.S. Court of Appeals, Second Circuit; 1976-1982, U.S. Court of Customs and Patent Appeals; 1982, U.S. Court of Appeals for the Federal Circuit


Memberships Customs and International Trade Bar Association (President, 2000-2002; Member, Board of Directors, 1990-2004); International Bar Association (Council Member, 2000—); American Foreign Law Association (Vice President, 2001—); The Association of the Bar of the City of New York (Member, Committee on International Trade, 1985-1990, 1994-1996); American Bar Association (Vice Chair, Committee on Customs Law, 2004-2006); State Bar of California (Member, Section on International Law); New York State Bar Association (Co-Chair, International Competition and Trade Policy, 1988-1991).


Spanish, Portuguese, French, Hebrew and Hungarian

Born New York, New York


Trial Attorney, U.S. Department of Justice, Civil Division, Commercial Litigation Branch, 1976-1981. Recipient, Attorney General's Meritorious Achievement Award, 1979. Member, Advisory Committee of United States Court of International Trade, 1993-1998.