Aon plc (NYSE: AON)
Insurance Brokers · Dublin, Ireland · Founded 1982
- Market capitalization: $80.0 billion
- Annual revenue: $10.77 billion
- Net income: $3.69 billion
- Employees: 50,000
- Sector: Financial Services
- Headquarters: Dublin, Ireland
- Founded: 1982
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Aon is one of the world's largest insurance brokers and risk management firms, advising corporations on insurance, reinsurance, retirement, and human capital solutions. The company doesn't underwrite insurance u2014 it acts as an intermediary, helping clients buy coverage from insurers. Aon serves 80% of the Fortune 500. The company is headquartered in Dublin, Ireland (for tax purposes) with major operations in London and Chicago.
Brokerage commissions and fees from placing insurance and reinsurance on behalf of clients. The company also earns fees from retirement consulting, investment consulting, and human capital advisory. The brokerage model is capital-light with high margins u2014 Aon doesn't take insurance risk. Revenue exceeds $14 billion annually. The company generates significant free cash flow and returns it through buybacks and dividends.
Patrick Ryan founded the company in 1982 (as Ryan Insurance Group, later Combined International, then Aon). The attempted $30 billion merger with Willis Towers Watson was blocked by the DOJ in 2021 on antitrust grounds. Aon acquired NFP (a middle-market insurance broker) for $13.4 billion in 2024. The company moved its legal domicile from the UK to Ireland in 2020.
| Market Capitalization | $80.0B |
| Annual Revenue | $10.77B |
| Net Income | $3.69B |
| Profit Margin | 34% |
| Revenue per Employee | $215400K |
| Stock Exchange | NYSE |
| Ticker Symbol | AON |
Financial data is approximate and based on most recent annual filings.
Aon's name comes from the Irish Gaelic word for "oneness." The failed Willis Towers Watson merger would have created the world's largest insurance broker. Aon lost 176 employees in the September 11 attacks u2014 the company occupied floors 92-105 of the South Tower. The company sponsors Manchester United's training complex (Aon Training Complex).
Insurance brokerage is one of the best business models in financial services u2014 capital-light, recurring revenue, and essential to clients u2014 and Aon's scale gives it negotiating leverage that smaller brokers can't match.
What is Aon plc's revenue?
Aon plc generates approximately $10.77 billion in annual revenue.
How many employees does Aon plc have?
Aon plc employs approximately 50,000 people worldwide.
What is Aon plc's market cap?
Aon plc (AON) has a market capitalization of approximately $80.0 billion on the NYSE.
When was Aon plc founded?
Aon plc was founded in 1982 and is headquartered in Dublin, Ireland.
Who is the CEO of Aon plc?
Greg Case is the current CEO of Aon plc.
What is Aon plc's website?
Aon plc's official website is aon.com.
| CEO | Greg Case |
| Sector | Financial Services |
| Industry | Insurance Brokers |
| Founded | 1982 |
| HQ | Dublin |
| Country | Ireland |
| Website | aon.com |
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