CHICAGO, Jan. 22 /PRNewswire-FirstCall/ -- Aon Risk Services, the risk management and insurance brokerage unit of Aon Corporation (NYSE: AOC), today announced Roger Maldonado and Christopher Barnes have joined the U.S. Aviation practice group to build a new southeast region office for Aon Aviation.

Maldonado joins as southeast region practice leader; Barnes joins as assistant director. Both are based in Atlanta.

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Maldonado was previously with Marsh Inc. as senior vice president of the aviation practice, responsible for managing the general aviation portfolio. Prior to that role, he was responsible for managing the Atlanta and Charlotte aviation offices for Marsh. Before joining Marsh, Maldonado was director of international risk for AIG Aviation in Atlanta, with responsibility for underwriting risks in Latin America. He holds a master's degree in business administration from Georgia State University and a bachelor of science degree in aerospace studies from Embry-Riddle Aeronautical University in Daytona Beach, Fla.

Barnes was most recently with Marsh Inc. in its national sales practice in Atlanta, concentrating on the U.S. aviation/aerospace industry. He also has extensive experience in executive benefits and compensation programs with professional services firms in Chicago, Kansas City and New York. Chris has a bachelor of science degree in business administration from William Jewell College in Liberty, Mo.

The team will report to Tracy Toro, managing director of Aon Aviation in New York.

About Aon

Aon Corporation (NYSE: AOC) is the leading global provider of risk management services, insurance and reinsurance brokerage, human capital and management consulting, and specialty insurance underwriting. Through its 43,000 professionals 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 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 Contact
   Rahsaan Johnson
   312.381.2684
   Rahsaan_Johnson@aon.com

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SOURCE: Aon Corporation

CONTACT: Rahsaan Johnson of Aon Corporation, +1-312-381-2684,
Rahsaan_Johnson@aon.com

Web site: http://www.aon.com/