CHICAGO, Feb. 7 /PRNewswire-FirstCall/ -- Reinforcing its commitment to client service excellence, Aon Corporation (NYSE: AOC) today announced the firm is integrating its worldwide risk and insurance brokerage operations into a single global business, Aon Risk Services, with more than 26,000 colleagues in 120 countries and more than $5 billion in revenues.

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

"Everything we do is based on helping clients, or helping colleagues help our clients," said Greg Case, Aon Corporation president and chief executive officer. "This is a significant and logical next step in aligning our incredible resources and talent around our clients, and follows on the success of our other core global businesses -- Aon Re Global and Aon Consulting. To the full credit of Aon colleagues around the world, our progress to date has enabled us to make this strategic move one year sooner than we anticipated."

Aon Risk Services will be led by Steve McGill, currently chief executive officer of Aon Risk Services Americas and Aon Global, and Ted T. Devine, currently chief executive officer of Aon Re Global. McGill will serve as chairman and chief executive officer and Devine as president of Aon Risk Services, and both will continue to be based in Chicago.

McGill, whose career spans three decades, has led Aon Risk Services Americas and Aon Global since 2006. Through his leadership with clients, markets and Aon colleagues, he has helped to drive industry-leading growth that has positioned Aon as the world's largest insurance brokerage and risk management firm. Devine, who joined Aon in 2005, has served as chief executive officer of Aon Re Global, head of strategy for Aon Corporation, chief operating officer of Aon Risk Services Americas and chief operating officer of Aon Global. Devine has driven operational excellence throughout the firm and led the implementation of Aon's company-wide initiative driving revenue growth across all businesses.

"In bringing all our Aon Risk Services operations together, we are enhancing the ability of our colleagues around the world to bring their deep knowledge of local needs, innovation and expertise to one global, client-focused business," said McGill. "This will reinforce our ability to ensure that innovative solutions are delivered globally, and we will see to it that no hurdle -- real or perceived -- stands in the way of bringing the very best of Aon to our clients."

"For Aon Risk Services to truly operate on a global scale, Steve and I will create a global leadership team of senior Aon professionals from around the world," Devine said. "We have great leaders in every region, and by bringing them together to lead Aon Risk Services, we will further improve our client leadership capabilities and will position our firm to deliver even more value and impact for our clients."

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
   Rahsaan_Johnson@aon.com          David_Prosperi@aon.com

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SOURCE: Aon Corporation

CONTACT: Rahsaan Johnson, +1-312-381-2684, Rahsaan_Johnson@aon.com, or
David Prosperi, +1-312-381-2485, David_Prosperi@aon.com, both of Aon
Corporation

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