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Insurance and consulting firm.

Global headquarters:
8 Devonshire Square
London, England EC2M 4PL
Employees: 65,000
CEO: Gregory Case
Stock Symbol: AON

Website: http://www.aon.com

Career Site

Aon plc offers insurance, risk management and consulting services to corporate clients around the world.

Aon is the world's largest global insurance broker, the world's largest manager of captive insurance companies, and the world's largest employee benefits consultant.

The company has more than 500 offices in 120 countries. The company has headquarters in London with major U.S. operations in Illinois.

Total revenue for 2012 was $11.5 billion, up from $11.28 billion. Net income for the year was $993 million.


The company was founded in 1982 when Ryan Insurance Group merged with Combined International Corporation. In 1987, the company name was changed to Aon, which is Gaelic for "oneness."

The company bought Hewitt Associates in 2010 for $4.9 billion.


Some of the benefits Aon offers to employees include:

- A variety of medical plans
- Vision and dental coverages
- Tuition reimbursement
- Paid and unpaid leaves
- Scholarships and tuition assistance
- Employee assistance program
- Discounts on a wide range of popular products and services
- Matching gifts for charitable contributions
- 401(k) plan with matching contributions
- Stock purchase programs

Updated December 25, 2013