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Aon Hewitt

Aon Center
200 East Randolph Street, 10th Floor
Chicago, IL 60601
(312) 381-4844



Aon is global provider of risk management services, insurance and reinsurance brokerage, and human resource consulting and outsourcing. With a worldwide distribution network, vast base of intellectual capital, and leading technology Aon draws on the best thinking from around the world, then delivers solutions with local expertise.

Company Stats


Employer Type




10,001+ Employees


Featured Rankings

Best Consulting Firms for Human Resources Consulting


Major Departments/Practice Areas

Benefits Administration


Major Office Locations

Lincolnshire, IL


Employment Contact

Annie Witbrod - Human Resources Director

Vault Verdict

 A consistent presence on our HR consulting practice area rankings, Aon Hewitt is a powerhouse within a highly specific corner of the wider industry. Part of the the much larger Aon Group, there is no doubt about the firm's stability or reputation. Simply put, this is a  firm that can offer great opportunities right out of college, and good resume appeal later in your career.

About the Company

Before there was Aon Hewitt, there were two companies: Aon and Hewitt. The former was a leading provider of risk management and insurance services, while the latter was a specialist HR consulting outfit. When the former purchased the latter for  around $4.9 billion in 2010, the Aon brand and business lived on, with one important addition: the subsidiary firm of Aon Hewitt, under whose aegis the firm's HR consulting operations are now grouped. 

According to the firm's most recent annual report, the Aon Hewitt unit generates around one third of Aon's total revenue, and "works to maximize the value of clients’ human resources spending, increase employee productivity, and improve employee performance. Our approach addresses a trend towards more diverse workforces (demographics, nationalities, cultures and wor...

Perks & Benefits

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