Allen Overy Shearman Sterling LLP (commonly A&O Shearman) is a multinational law firm. The firm was formed as a result of a merger between Magic Circle firm Allen & Overy and white shoe firm Shearman & Sterling, creating a firm estimated to have nearly 4,000 attorneys across 49 offices with a combined revenue of $3.4 billion, making it the third biggest law firm in the world.[1]
History
The terms of the merger between Magic Circle firm Allen & Overy and white shoe firm Shearman & Sterling were announced on 21 May 2023[2] and approved on 13 October 2023 by more than 99% of partners from both firms.[3] The merger was completed on 1 May 2024, making it the fourth-largest law firm in the world.