AOC Aon Corp.

PHILADELPHIA, Nov. 12 /PRNewswire-FirstCall/ -- Aon Risk Services, the retail brokerage and risk management arm of Aon Corporation (NYSE:AOC), today announced Michael Celano has joined the company as managing director in the Life Sciences National Practice Group. As managing director, Celano, 49, will be a leader in Aon's life sciences business development activities. (Logo: http://www.newscom.com/cgi-bin/prnh/20041215/CGW049LOGO ) "Mike's extensive background in public accounting and hands-on expertise in the life sciences industry add a unique dimension to our group that will make our risk consulting and advisory offerings even more robust for our clients," said Jim Walters, managing director of Aon's Life Sciences Group. "Jim Walters, Tom James and their national team have built Aon into the premier life sciences risk consulting and insurance services firm," said Marc Armstrong, Aon Risk Services managing principal. "Adding Mike Celano's deep industry experience to the Aon team will enable us to take our life science practice to an even higher level." Based in Philadelphia, Celano joined Aon from BioRexis, a venture-funded life sciences company where he was chief financial officer. BioRexis achieved a successful exit for its investors with its recent sale to Pfizer. Before joining BioRexis, Celano spent 24 years in public accounting as a partner with KPMG and Arthur Andersen, holding life science leadership positions with both firms. Celano worked extensively advising clients in public offerings, corporate partner and merger and acquisition transactions. Celano is also a board member of a publicly held medical diagnostics company. 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 http://www.newscom.com/cgi-bin/prnh/20041215/CGW049LOGO http://photoarchive.ap.org/ DATASOURCE: Aon Corporation CONTACT: Rahsaan Johnson of Aon Corporation, +1-312-381-2684, Web site: http://www.aon.com/

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