Aon Names Davis, Jann, and Mancuso To Fill New Combined Specialty Corporation Executive Management Positions.

Business Editors

CHICAGO--(BUSINESS WIRE)--March 5, 2002

Aon Corporation (NYSE: AOC) today named Deems Davis Chief Information Officer, Bobby Jann Chief Administrative Officer, and Rob Mancuso Corporate Communications Officer for Combined Specialty Corporation.

Deems Davis will be responsible for strategies, policies, plans, architectures, standards and process improvement initiatives associated with information technology. He will also be responsible for overseeing Knowledge sharing and optimizing, leveraging and coordinating enterprise-wide IT investments and installed technologies.

Mr. Davis will report to Richard Ravin.

Before joining Combined, Mr. Davis was Chief Operating Officer for Goodshark Enterprises, a technology start-up providing human capital management solutions. Prior to Goodshark, Mr. Davis was Chief Information Officer for Fireman's Fund Insurance Company after having held a variety of executive-level IT positions within that organization.

Mr. Davis earned his Bachelors degree in Computer Science from Brigham Young University. He has served on the boards of directors of two insurance technology companies, and as an advisory board member for Compaq Computers, University of California-Berkeley Fisher Center for Information Management, and Allianz Insurance International Technology. He is currently an advisory board member for the Northern Illinois University Computer Science department.

Bobby Jann will be responsible for all day-to-day administrative functions, including corporate travel, real estate, facilities management, security, strategic sourcing, office services, procurement and corporate media.

Mr. Jann will report to David Cole.

Before being named to this new position, Mr. Jann was the Director of Marketing Services for Combined Insurance Company of America--a position he had held since 1998. Prior to joining Combined he was National Training Director for Serta Mattress Company.

Mr. Jann earned his Bachelors degree from the University of Kansas and his MBA from Chicago's Roosevelt University.

Rob Mancuso will be responsible for public relations, media relations, advertising and marketing.

Mr. Mancuso will report to David Cole.

Before being named to this new position, Mr. Mancuso held the positions of Senior Vice President, eBusiness for Aon Warranty Group and Vice President, Special Markets for the Resource Dealer Group, an Aon Company.

Mr. Mancuso earned his Bachelor of Arts degree from Princeton University. He is an author and frequent contributor to national publications.

"We're truly fortunate to have these executives on our team and ready to take on more responsibility," said Dennis B. Reding, Chief Executive Officer of Combined Specialty Corporation. "They bring a wealth experience and expertise to their roles, and will play an integral part in establishing Combined Specialty as a major independent underwriting and property and casualty insurance leader."

In 2001, Aon announced plans to spin off its underwriting operations to stockholders through a new company to be named Combined Specialty Corporation. The spin-off is scheduled for spring, 2002.

Aon Corporation (http://www.aon.com) is a holding company that is comprised of a family of insurance brokerage, consulting and insurance underwriting subsidiaries.

This press release may contain certain statements relating to future results, 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 historical results or those anticipated, depending on a variety of factors such as general economic conditions in different countries around the world, fluctuations in global equity and fixed income markets, changes in commercial property and casualty premium rates, the competitive environment, the actual cost of resolution of contingent liabilities, the final form of the business transformation plan, the ultimate cost and timing of the implementation thereof, the actual cost savings and other benefits resulting therefrom, whether the Company ultimately implements the proposed spin-off of its underwriting operations, and the timing and terms associated therewith, and events surrounding terrorists attacks of September 11, 2001, including the timing and resolution of related insurance and reinsurance issues. Further information concerning the Company and its business, including factors that potentially could materially affect the Company's financial results, are contained in the Company's filings with the Securities and Exchange Commission.