Aon (company)

Aon plc

Logo since 2021
Headquarters at 122 Leadenhall Street, London
Company type	Public limited company
Traded as	NYSE: AON (Class A) S&P 500 component
ISIN	GB00B5BT0K07
Industry	Financial services
Founded	1982; 42 years ago (1982)
Founder	Patrick Ryan
Headquarters	London, United Kingdom[1]
Area served	Worldwide
Key people	Lester Knight (chairman) Eric Andersen (president) Greg Case (CEO)
Services	Risk consulting Retirement consulting Health consulting
Revenue	US$13.38 billion (2023)
Operating income	US$3.785 billion (2023)
Net income	US$2.564 billion (2023)
Total assets	US$33.96 billion (2023)
Total equity	US$–826 million (2023)
Number of employees	c. 50,000 (2023)
Website	www.aon.com
Footnotes / references [2]

Aon plc (English: /ˈeɪɒn/) is a British-American^[3] professional services and management consulting firm that offers a range of risk-mitigation products.^[4] Aon has approximately 50,000 employees across 120 countries.^[5]

Founded in Chicago by Patrick Ryan, Aon was created in 1982 when the Ryan Insurance Group merged with the Combined Insurance Company of America. In 1987, that company was renamed Aon from aon, a Gaelic word meaning "one". The company is globally headquartered in London with its North America operations based in Chicago at the Aon Center. Aon is listed on the New York Stock Exchange under AON with a market cap of $65 billion in April 2023.^[6]