Aon Corporation is a global professional services firm headquartered in London, United Kingdom. It specializes in risk management, insurance brokerage, and human resources consulting. Aon provides a wide range of services to clients, helping them manage risks and improve their performance through data-driven insights. Founded in 1982, Aon has grown significantly through mergers and acquisitions, including the notable merger with Willis Towers Watson in 2020, although that deal was ultimately terminated. The company operates in over 120 countries, employing thousands of professionals dedicated to delivering innovative solutions for businesses and organizations worldwide.