CHICAGO, Nov. 16 /PRNewswire-FirstCall/ -- Aon Corporation, the leading global provider of risk management services and human capital consulting, today was recognized by the readers of Business Insurance in four major categories in the magazine's fifth annual Readers Choice Awards.

(Logo: http://www.newscom.com/cgi-bin/prnh/20041215/CGW049LOGO)

As part of the awards program, Aon was named:

• Best retail brokerage with revenues in excess of $250 million
• Best reinsurance intermediary
• Best employee benefit consulting firm
• Best captive manager (a new category in 2009)

"We are very appreciative that the readers of Business Insurance chose Aon as the best in these important business categories," said Gregory C. Case, President and Chief Executive Officer of Aon Corporation. "These awards are not based on revenue, resume or reputation. They are based on the readers' beliefs about which company delivers the most value to their business. Aon's 37,000 colleagues focus on delivering distinctive value to clients every day, and as a result, we are grateful for these honors."

Business Insurance launched the Readers Choice Awards in 2005 to let readers vote for the companies that they believe offer the best combination of service, value, quality and innovation. For more information on the 2009 Business Insurance Readers Choice Awards, log onto www.businessinsurance.com

About Aon

Aon Corporation (NYSE: AOC - News) 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, 2008 and 2009 by the readers of Business Insurance. For more information on Aon, log onto http://www.aon.com/.

    Media Contact:
    David Prosperi
    Aon Corp.
    312-381-2485
    David_Prosperi@aon.com