A&O Shearman

A&O Shearman is a global law firm established in 2024 through the merger of Allen & Overy and Shearman & Sterling. With more than 250 years of combined experience, the firm operates across 49 offices in 29 countries and employs nearly 4,000 lawyers, including 800 partners.

The firm is recognized for its ability to handle complex, multijurisdictional matters with fluency in English law, U.S. law, and the laws of leading global markets. Its lawyers regularly advise on cross-border transactions, regulatory matters, finance, capital markets, disputes, and innovative legal solutions. Clients include a significant proportion of the world’s most influential companies and institutions, among them more than a third of NYSE-listed businesses, a fifth of NASDAQ-listed companies, and notable clients from the London Stock Exchange, Euronext, Euronext Paris, and the Tokyo and Hong Kong Stock Exchanges.

A&O Shearman has established a reputation for precedent-setting innovations, seamless collaboration, and trusted advisory relationships. The firm provides services across key sectors, including communications, media and entertainment, consumer and retail, energy, financial institutions, industrials and manufacturing, infrastructure and transport, life sciences and healthcare, mining and metals, private capital, and technology.

The firm’s global reach, multidisciplinary expertise, and record of ground-breaking legal solutions underpin its status as the third-largest law firm worldwide, consistently earning industry accolades for the quality and outcomes of its work.