Aon Corporation Names Greg Besio as Chief Administrative Officer

CHICAGO, April 17 /PRNewswire-FirstCall/ -- Aon Corporation (NYSE: AOC),
the leading global risk advisor and insurance broker, today announced that
Gregory J. Besio, currently serving as Executive Vice President, Global
Strategy, has taken on the additional role of Chief Administrative Officer. In
this role, he takes responsibility for managing governance, human resources,
and mergers and acquisitions, in addition to corporate strategy.
(Logo: http://www.newscom.com/cgi-bin/prnh/20041215/CGW049LOGO)
"Greg's combination of operating experience and strategic skills make him
ideally suited for this role," said Gregory C. Case, President and Chief
Executive Officer of Aon. "Within each function, Greg will work with the
business leaders to improve our firm's operational capability and
responsiveness to our business needs and those of our clients."
Besio joined Aon in 2007 as Senior Vice President, Global Strategy.
Previously, he worked for Motorola where from 2003 to 2007 he held a series of
positions of increasing responsibility, including leading corporate strategy.
Most recently, he was Corporate Vice President, Mobile Devices Software, where
he led a 4,500 person global development group that launched a new software
platform for cellular phones.
Besio is a graduate in Chemical Engineering from the University of Notre
Dame, and earned a doctoral degree in the same discipline from Princeton
University. He also holds a masters degree in business administration from the
University of Chicago.
About Aon Corporation
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/
Media Contacts
David Prosperi
312.381.2485
David_Prosperi@aon.com

SOURCE Aon Corporation

David Prosperi of Aon Corporation, +1-312-381-2485, David_Prosperi@aon.com