Cleary Gottlieb Steen & Hamilton LLP is an international law firm headquartered in New York City. The firm was founded in 1946 by lawyers from Cravath, Swaine & Moore and has since grown to include approximately 1,200 lawyers in 16 offices worldwide. Cleary Gottlieb is known for its work in the areas of antitrust, corporate governance, mergers and acquisitions, securities, and international arbitration and litigation. The firm has represented clients in many high-profile cases, including the restructuring of Greece's sovereign debt and the merger of American Airlines and US Airways. Cleary Gottlieb has been ranked as one of the top law firms in the world by various legal publications.