Aon Declares Quarterly Dividend

CHICAGO, April 17 /PRNewswire-FirstCall/ -- Aon Corporation (NYSE:AOC) today declared a quarterly cash dividend of $0.15 per common share. The cash dividend is payable on May 14, 2008 to common stockholders of record at the close of business on May 1, 2008.

About Aon

Aon Corporation (NYSE:AOC) is the leading global provider of risk management services, insurance and reinsurance brokerage, human capital and management consulting. Through its 36,000 colleagues worldwide, Aon readily delivers distinctive client value via innovative and effective risk management and workforce productivity solutions. Our industry-leading global resources, technical expertise and industry knowledge are delivered locally through more than 500 offices in more than 120 countries. Aon was named the world's "best broker" by Euromoney magazine's 2008 Insurance Survey. Aon also was ranked by A.M. Best as the number one global insurance brokerage in 2007 based on brokerage revenues, and voted best insurance intermediary, best reinsurance intermediary, and best employee benefits consulting firm in 2007 by the readers of Business Insurance. For more information on Aon, log onto http://www.aon.com/.

Investor Contact:
Scott Malchow
Vice President, Investor Relations
312-381-3983

Media Contact:
David Prosperi
Vice President, Global Public Relations
312-381-2485

First Call Analyst:
FCMN Contact:

Source: 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/

2008-04-17 17:57:09 0339236 PRNEWSWIRE