A&O Shearman is a global law firm formed in 2024 through the merger of Allen & Overy and Shearman & Sterling, bringing together two long established international practices into a single integrated platform. The firm advises multinational corporations, financial institutions, private capital groups and governments on complex cross border matters spanning areas such as finance, disputes, regulatory work, capital markets, corporate transactions and emerging technologies. With a strong presence across major financial centres in Europe, North America, Asia Pacific, the Middle East, Africa and Latin America, it operates as a fully global partnership supported by a network of offices worldwide. The firm has a workforce of approximately 4,000 lawyers and is recognised for combining English and US legal expertise with deep knowledge of key international markets. Its headquarters is split across major global hubs, reflecting its transatlantic heritage and international structure, and it serves clients across a broad range of industries including financial services, energy, technology, life sciences and private capital.
