AOC Aon Corp.

CHICAGO, June 8 /PRNewswire-FirstCall/ -- Aon Corporation (NYSE:AOC) announced today that Stephen P. McGill, chairman and CEO of Aon Risk Services, will present at the 29th William Blair Annual Growth Stock Conference in Chicago on Wednesday, June 10, 2009 at 10:00 A.M. Central Time. Interested parties may access an audio webcast of the presentation at http://www.aon.com/. About Aon Aon Corporation (NYSE:AOC) is the leading global provider of risk management services, insurance and reinsurance brokerage, and human capital consulting. Through its more than 37,000 colleagues worldwide, Aon readily delivers distinctive client value via innovative and effective risk management and workforce productivity solutions. Aon's industry-leading global resources and technical expertise are delivered locally through more than 500 offices in more than 120 countries. Named the world's best broker by Euromoney magazine's 2008 and 2009 Insurance Survey, Aon also ranked highest on Business Insurance's listing of the world's largest insurance brokers based on commercial retail, wholesale, reinsurance and personal lines brokerage revenues in 2008. A.M. Best deemed Aon the number one insurance broker based on brokerage revenues in 2007 and 2008, and Aon was voted best insurance intermediary, best reinsurance intermediary and best employee benefits consulting firm in 2007 and 2008 by the readers of Business Insurance. For more information on Aon, log onto http://www.aon.com/. It should be noted that Mr. McGill's remarks may contain forward-looking statements. Please refer to Aon's Annual Report or Form 10-K for the year ended December 31, 2008 and its past and future filings and reports filed with the Securities and Exchange Commission for a description of the business environment in which Aon operates and the important factors that may affect its business. Aon is not under any obligation to (and expressly disclaims any such obligation to) update or alter its forward-looking statements whether as a result of new information, future events or otherwise. Investor Contact: Media Contact: Scott Malchow David Prosperi Vice President, Investor Relations Vice President, Global Public Relations 312-381-3983 312-381-2485 DATASOURCE: Aon Corporation CONTACT: Investors, Scott Malchow, Vice President, Investor Relations, +1-312-381-3983, or Media, David Prosperi, Vice President, Global Public Relations, +1-312-381-2485, both of Aon Corporation Web Site: http://www.aon.com/

Copyright