CHICAGO, Jan. 14 /PRNewswire-FirstCall/ -- Aon Corporation (NYSE: AOC), the leading provider of global risk management services, today announced that Mary Ann Krautheim has joined Aon Construction Services Group as its first ever National Client Strategy Officer. Based in Minneapolis, Krautheim is one of a number of strategic hires employed by Aon Construction Services Group to differentiate its services and deliver distinctive value to clients.

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

"Mary Ann understands the obstacles and financial risks facing our contractor and owner clients," said Kevin White, chief operating officer of Aon Construction Services Group. "In this new role, her underwriting and broker experience will further guarantee our clients are getting the best solutions and advice the industry has to offer. All Aon clients will benefit from her expertise as we continue to work diligently to protect their businesses and enhance their profits."

Krautheim, 49, has supported the construction industry for nearly 20 years at various insurance and brokerage firms. In her role as National Client Strategy Officer, she is responsible for refinement of best practices, benchmarking, risk financing methods and peer review -- all to deliver a well-defined risk profile to clients. Most recently, Krautheim spent two years at Willis Construction where she served as senior vice president. Prior to this role, she assisted in creating the construction practice at Arch Insurance Company and also spent 10 years at St. Paul Companies.

Krautheim holds a bachelor's degree in history from the University of Pittsburgh.

About Aon Construction Services Group

Aon Construction Services Group employs over 540 employees dedicated to the construction industry in 25 offices across the country. Backed by broad resources, industry knowledge and technical expertise, Aon professionals understand every major sector of the construction industry and help a wide range of clients develop effective risk management and workforce productivity solutions.

About Aon Corporation

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
   Raphaele Schnoll
   KemperLesnik Communications
   312.755.3592
   Raphaele.Schnoll@kemperlesnik.com

Photo: http://www.newscom.com/cgi-bin/prnh/20041215/CGW049LOGO
AP Archive: http://photoarchive.ap.org/
PRN Photo Desk, photodesk@prnewswire.com

SOURCE: Aon Corporation

CONTACT: Raphaele Schnoll of KemperLesnik Communications,
+1-312-755-3592, Raphaele.Schnoll@kemperlesnik.com, for Aon Corporation

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