AOC Aon Corp.

Firm promotes Aon colleagues to co-head Aon Consulting Worldwide CHICAGO, Feb. 7 /PRNewswire-FirstCall/ -- Aon Corporation (NYSE:AOC), the leading provider of global risk management and consulting services, today announced that Andrew Appel, previously chief executive officer of Aon Consulting, has assumed the role of chief executive officer of Aon Re Global, the world's largest global reinsurance intermediary. Appel additionally will serve as chairman of Aon Consulting. In the Aon Re Global role, Appel replaces Ted T. Devine, who was recently appointed president of Aon Risk Services. (Logo: http://www.newscom.com/cgi-bin/prnh/20041215/CGW049LOGO) "In this role, Andrew is joining Aon Re Global to partner with Executive Chairman Mike O'Halleran, the architect, founder and market face of our reinsurance business," said Greg Case, president and chief executive officer of Aon Corporation. "Our reinsurance team is the best in the world. Under the leadership of Mike, Andrew and our team, I continue to be very excited about the future of Aon Re Global." Aon also announced today it has promoted Kathryn Hayley, chief executive officer of Aon Consulting U.S., and Baljit "Bal" Dail, global chief information officer of Aon Corporation and global chief administration officer of Aon Consulting, to the position of chief executive officer and co-head of Aon Consulting, responsible for leading the global organization. Hayley and Dail will chair Aon Consulting's executive global operating committee, the nine-member global leadership group. Dail will continue to serve in his role as global chief information officer of Aon Corporation. "Andrew and the team have done a phenomenal job of shaping Aon Consulting into the human capital consulting industry's leader in innovation and client service," said Case. "I am confident that Kathryn, Bal and team will build on the distinctive record of success at Aon Consulting." About Aon Re Aon Re Global, the world's leading and most preferred reinsurance intermediary, provides clients with integrated capital solutions and services through a world-class network of experts in more than 35 countries. Clients are better able to differentiate and meet their business objectives with Aon Re Global's best-in-class treaty and facultative reinsurance placement services, capital markets expertise, and relevant analytics and technical expertise, including catastrophe management, actuarial, and rating agency counsel. Aon Re Global was named best reinsurance broker in 2007 and 2006 by readers of Business Insurance, in 2007 by readers of US Insurer and in 2006 by readers of Reinsurance. About Aon Consulting Aon Consulting Worldwide is among the top global human capital consulting firms, with 2006 revenues of $1.282 billion and 6,500 professionals in 117 offices worldwide. Aon Consulting is shaping the workplace of the future through benefits, talent management and rewards strategies and solutions. Aon Consulting was named the best employee benefit consulting firm by the readers of Business Insurance magazine in 2006 and 2007. 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/. Safe Harbor Statement This press release contains certain statements related to future results, or states our intentions, beliefs and expectations or predictions for the future which are forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from either historical or anticipated results depending on a variety of factors. Potential factors that could impact results include: general economic conditions in different countries in which we do business around the world, changes in global equity and fixed income markets that could affect the return on invested assets, fluctuations in exchange and interest rates that could influence revenue and expense, rating agency actions that could affect our ability to borrow funds, funding of our various pension plans, changes in the competitive environment, our ability to implement restructuring initiatives and other initiatives intended to yield cost savings, our ability to successfully close the sales of our Combined Insurance and Sterling Life Insurance businesses, the impact of current, pending and future regulatory and legislative actions that affect our ability to market and sell, and be reimbursed at current levels for, our Sterling subsidiary's Medicare Advantage health plans, changes in commercial property and casualty markets and commercial premium rates that could impact revenues, changes in revenues and earnings due to the elimination of contingent commissions, other uncertainties surrounding a new compensation model, the impact of investigations brought by U.S. state attorneys general, U.S. state insurance regulators, U.S. federal prosecutors, U.S. federal regulators, and regulatory authorities in the U.K. and other countries, the impact of class actions and individual lawsuits including client class actions, securities class actions, derivative actions, ERISA class actions, the impact of the analysis of practices relating to stock options, the cost of resolution of other contingent liabilities and loss contingencies, and the difference in ultimate paid claims in our underwriting companies from actuarial estimates. Further information concerning the Company and its business, including factors that potentially could materially affect the Company's financial results, is contained in the Company's filings with the Securities and Exchange Commission. Media Contact Rahsaan Johnson David Prosperi 312.381.2684 312.381.2485 http://www.newscom.com/cgi-bin/prnh/20041215/CGW049LOGO http://photoarchive.ap.org/ DATASOURCE: Aon Corporation CONTACT: Rahsaan Johnson, +1-312-381-2684, , or David Prosperi, +1-312-381-2485, , both of Aon Corporation Web site: http://www.aon.com/

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