Aon PLC
Statements
Segments
US companies must disclose in their mandatory reports how revenue breaks down across business segments, regions and product lines. We read that breakdown for you straight from the annual and quarterly reports (10-K and 10-Q) of Aon PLC (AON). It shows which part of the business is growing — and which one is holding it back.
Revenue by business segment
| Segment | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| Risk Capital | $8.91B 71.3% | $9.52B 71.1% · +7.0% | $10.52B 66.9% · +10.4% | $11.29B 65.7% · +7.4% |
| Human Capital | $3.59B 28.7% | $3.86B 28.9% · +7.6% | $5.21B 33.1% · +34.8% | $5.91B 34.3% · +13.4% |
Large figure: segment revenue. Below it the share of revenue in that period and the change against the prior year.
| Segment | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| Risk Capital | $2.90B 32.5% | $2.95B 30.9% | $3.29B 31.3% | $3.44B 30.4% |
| Human Capital | $961.0M 26.8% | $1.10B 28.4% | $1.14B 21.9% | $1.41B 23.9% |
Large figure: segment operating income. Below it the margin, that is operating income measured against the revenue of the same segment.
Revenue by region
| Segment | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| U.S. | $5.03B 45.5% | $5.46B 44.8% · +8.5% | $5.67B 45.4% · +3.8% | $5.92B 44.3% · +4.5% | $7.67B 48.8% · +29.4% | $8.28B 48.2% · +8.0% |
| Europe, Middle East, & Africa other than U.K. and Ireland | – | – | $2.44B 19.6% | $2.67B 20.0% · +9.4% | $2.90B 18.5% · +8.5% | $3.15B 18.4% · +8.7% |
| U.K. | $1.58B 14.3% | $1.68B 13.8% · +6.5% | $1.66B 13.3% · -1.2% | $1.82B 13.6% · +9.6% | $1.98B 12.6% · +8.6% | $2.22B 12.9% · +12.4% |
| Asia Pacific | $1.22B 11.1% | $1.33B 10.9% · +9.0% | $1.47B 11.8% · +10.5% | $1.59B 11.9% · +7.8% | $1.68B 10.7% · +5.5% | $1.71B 10.0% · +2.1% |
| Americas other than U.S. | – | – | $1.14B 9.1% | $1.26B 9.4% · +10.8% | $1.34B 8.5% · +6.0% | $1.63B 9.5% · +22.3% |
| Ireland | $84.0M 0.8% | $127.0M 1.0% · +51.2% | $99.0M 0.8% · -22.0% | $113.0M 0.8% · +14.1% | $146.0M 0.9% · +29.2% | $185.0M 1.1% · +26.7% |
| Americas other than U.S. | $911.0M 8.2% | $1.03B 8.4% · +12.7% | – | – | – | – |
| Europe, Middle East, & Africa other than U.K. and Ireland | $2.24B 20.2% | $2.57B 21.0% · +14.7% | – | – | – | – |
Large figure: segment revenue. Below it the share of revenue in that period and the change against the prior year.
Revenue by product line
| Segment | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|
| Commercial Risk Solutions | $5.86B 52.9% | $6.64B 54.3% · +13.2% | $6.72B 53.7% · +1.2% | $7.04B 52.6% · +4.9% |
| Reinsurance Solutions | $1.81B 16.4% | $2.00B 16.4% · +10.1% | $2.19B 17.5% · +9.7% | $2.48B 18.5% · +13.3% |
| Health Solutions | $2.07B 18.7% | $2.15B 17.6% · +4.2% | $2.22B 17.8% · +3.2% | $2.43B 18.2% · +9.4% |
| Wealth Solutions | $1.34B 12.1% | $1.43B 11.7% · +6.3% | $1.37B 10.9% · -4.1% | $1.43B 10.7% · +4.7% |
Large figure: segment revenue. Below it the share of revenue in that period and the change against the prior year.
Segment and region names are the ones the company itself uses and are shown as reported. Change and share refer to revenue.
Data as of: August 7, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q) · Segment figures: SEC EDGAR (10-K/10-Q reports)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.