PHOENIX, Sept. 2 /PRNewswire-FirstCall/ -- Aon Corporation (NYSE: AOC - News), the leading provider of global risk management services, today announced that Karen Mildenhall has joined the firm as executive vice president of Aon Construction Services Group.

In addition to her responsibilities with the construction team, Mildenhall assumes operational responsibility for Aon Risk Services in Phoenix as resident managing director. In her dual role, Mildenhall will be responsible for developing and executing client growth strategies and leading the health & benefits practice area.

Mildenhall continues the series of strategic hires employed by Aon Construction Services Group to deliver distinctive client value and create unmatched teams.

"Karen has a tremendous wealth of experience in the insurance arena," states John Day, regional managing director, Aon Construction Services Group. "Her leadership skills will be recognized immediately by our clients and colleagues throughout the Southwest."

Mildenhall brings to Aon's clients more than 22 years of experience as a business leader and in the insurance industry. She previously was managing director at Marsh, with a 10-year tenure that included global and mid-sized client executive leadership, brokerage center manager and national middle market leader.

Her background also includes insurance carrier management at insurers USF&G and Argonaut. Mildenhall's diverse experience includes corporate leadership positions, driving field office operations, leading commercial lines in the western United States, and working in safety management and claims management.

Mildenhall received a Bachelor of Science degree from Brigham Young University.

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 - News) is the leading global provider of risk management services, insurance and reinsurance brokerage, human capital and management consulting. Through its 36,000 colleagues 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 named the world's best broker by Euromoney magazine's 2008 Insurance Survey. In 2008, Aon ranked highest on the Business Insurance ranking of the world's largest insurance brokers based on commercial retail, wholesale, reinsurance and personal lines brokerage revenues. Aon also was ranked by A.M. Best as the number one insurance broker based on brokerage revenues in 2007 and 2008, and was voted best insurance intermediary, best reinsurance intermediary, and best employee benefits consulting firm in 2007 and 2008 by the readers of Business Insurance.

Media Contact

Allyson Marcus, 312.755.3592, Allyson.Marcus@kemperlesnik.com

Source: Aon Corporation

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