Aon Logo – Aon Corporation is a US-based company with headquarters in Chicago , Illinois , that the insurance industry and in the risk management industry operates. The company is in the stock index S & P 500 listed and employs over 61,000 people. (February 2009). The headquarters of the company is located in Chicago, Aon Center . In Los Angeles , the employees of the company in the Aon Center in the city.
Aon Corporation was established in 1982 by the merger of U.S. insurance company Ryan Insurance Group (founded by Pat Ryan in the 1960s) and Combined International Corporation (founded by W. Clement Stone in 1919). When the terrorist attacks on 11 September 2001 175 people died of the company in the southern tower of the World Trade Center .
In August 2008 the company acquired the British insurance company Benfield Group in London. in Germany is a subsidiary Aon Jauch & Huebener in Hamburg. In October 2010, the 4.9 billion dollar acquisition of Hewitt Associates completed.