Allen & Overy is a multinational law firm based in the United Kingdom. It was founded in 1930 in London and has since expanded its operations globally. The firm's headquarters is located in One Bishops Square, London.

Allen & Overy offers a wide range of legal services to clients worldwide. Some of its main practice areas include banking and finance, capital markets, corporate and M&A, litigation, and international arbitration. The firm provides legal advice to clients across various industries, including banking, energy, technology, and telecommunications.

With offices in more than 40 countries worldwide, Allen & Overy has a strong global presence. The firm has established a number of notable subsidiaries, joint ventures, and partnerships to enhance its capabilities and expand its international reach. For example, it has a strategic alliance with South African law firm Webber Wentzel and Singaporean law firm Allen & Gledhill, allowing it to offer comprehensive legal services to clients in Africa and Southeast Asia.

Allen & Overy is widely recognized as one of the top law firms in the world. It consistently ranks among the top performers in terms of global sales and market position. The firm competes with other leading law firms such as Clifford Chance, Linklaters, and Freshfields Bruckhaus Deringer.

Over the years, Allen & Overy has achieved several milestones and received numerous accolades. In 2020, the firm was named Law Firm of the Year at the Legal Business Awards. It has also been recognized for its commitment to diversity and inclusion, as well as its pro bono work.

As of the latest updates, Allen & Overy continues to serve its clients globally and expand its operations. The firm remains at the forefront of legal innovation and is known for its expertise in complex and cross-border transactions