Allen & Overy is an international law firm based in London. As a member of the UK's Magic Circle of leading law firms, Allen & Overy is widely considered to be one of the world's most elite law firms, providing legal expertise to national and multinational corporations, financial institutions, and governments.

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Since its founding in 1930 by George Allen and Thomas Overy, Allen & Overy has grown to become one of the largest law firms in the world. With over 5,000 staff, including over 500 partners in 46 offices worldwide, the firm provides legal advice in Europe, the Americas, Asia, Australia, Africa and the Middle East.