87/100BAon company profile
- CEO
- Gregory C. Case
- Employees
- 60,000
- Headquarters
- 15 George's Quay, Dublin, DU D02 VR98, IE
- Sector
- Financial Services
- Industry
- Insurance - Brokers
- IPO date
- 1 Jun 1980
- Stock exchange
- NYSE
- ISIN
- IE00BLP1HW54
Website:aon.com
About the company
Aon plc operates as a professional services firm in the United States, rest of the Americas, the United Kingdom, Ireland, rest of Europe, the Middle East, Africa, and the Asia Pacific. It operates through Risk Capital and Human Capital segments. The company offers commercial risk solutions comprising retail and insurance brokerage, specialty solutions, global risk consulting, captives management, and affinity programs; health solutions, such as consulting and brokerage, consumer benefits, and talent advisory services; and wealth solutions, including retirement consulting and investments. It also provides treaty and facultative reinsurance; strategy and technology group solutions; insurance-linked securities, capital raising, strategic advice, restructuring, and merger and acquisition services; and risk management products and solutions, capital market solutions, and corporate finance advisory services. In addition, the company offers strategic design advice and actuarial services; pension risk transfer and integrated pension administration; and investment advisory services on developing and maintaining investment programs across various plan types, including defined benefit plans, defined contribution plans, master trusts, and pooled employer plans for corporations, public pensions, endowments, and foundations. Aon plc was incorporated in 1979 and is headquartered in Dublin, Ireland.
Employees
Aon had about 60,000 employees at the end of fiscal year 2025 (31 December 2025), by its annual report. That is 0.0% more than a year before.
Employees at each fiscal year end, as the company reports them in its annual report (10-K); revenue and net income per employee are the fiscal year's over that count.
Who owns Aon
Institutions such as funds, banks and insurers held 90.8% of Aon's shares on 30 June 2026, 1,291 of them reporting holdings to the SEC; the rest is held by individual investors and other shareholders.
Shares free to trade
Closely held shares belong to insiders, founders and owners of more than 5%, and seldom change hands. The free float is the rest: the shares anyone can buy and sell.
Common questions about Aon
Source: Financial Modeling Prep