CHICAGO, Nov. 30 /PRNewswire-FirstCall/ -- Aon Consulting Worldwide, the leading global human capital consulting organization of Aon Corporation (NYSE: AOC), today announced the appointment of Mark Blumenthal, a seasoned professional with more than 25 years of human capital and strategic consulting, and financial management experience, as its chief financial officer. Blumenthal reports to Andrew Appel, chief executive officer of Aon Consulting Worldwide, and is responsible for all aspects of financial management for Aon Consulting.

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"We welcome Mark to Aon Consulting," said Appel. "He joins a growing list of quality leaders with Aon, which demonstrates that we are not only committed to attracting top talent, but also shows that the industry's best want to be a part of our organization."

Blumenthal, age 47, most recently led the global business operations and service delivery for the relocation segment of SIRVA Inc. Prior to that, he founded Blumenthal Financial Advisors, serving as CFO and advisor to international businesses and individuals, focusing on global financial management and growth strategies. Blumenthal also spent 20 years with Andersen (formerly Arthur Andersen), primarily as a partner in the Human Capital Services and International Executive Services Practices, and partner in charge of Global Finance Transformation. In addition, he served as the CFO, Asia Pacific, with Andersen, and spent nine years in Tokyo, Hong Kong and Singapore.

Blumenthal, based in Chicago, also will play a leading role in the strategic planning process as it relates to profitability and future business growth. The position of CFO for Aon Consulting Worldwide expands a controller role previously held by Dennis Slusarski, who will assist Blumenthal with the transition during the next several months.

Blumenthal is a certified public accountant and a certified financial planner. He earned a bachelor's of science degree from Miami University (Ohio).

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/.

About Aon Consulting

Aon Consulting Worldwide (http://www.aon.com/hcc) 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. In 2006 and 2007, Aon Consulting was named the best employee benefit consulting firm by the readers of Business Insurance magazine.

   Media Contacts:
   Joe Micucci
   312-381-4786
   joe_micucci@aon.com

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SOURCE: Aon Corporation

CONTACT: Joe Micucci of Aon Corporation, +1-312-381-4786,
joe_micucci@aon.com

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