Aon plc revenue by year
Over the 10 fiscal years shown, revenue went from $9.41B (year ended Dec 31, 2016) to $17.18B (year ended Dec 31, 2025), a compound annual growth rate of 6.9%. The fastest growth was +17.4% in the year ended Dec 31, 2024; the weakest year was +0.5% (year ended Dec 31, 2020).
Annual revenue
| Fiscal year ended | Revenue (USD) | Change | XBRL concept | Reported in |
|---|---|---|---|---|
| Dec 31, 2025 | $17.18B | +9.4% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 13, 2026 |
| Dec 31, 2024 | $15.70B | +17.4% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 13, 2026 |
| Dec 31, 2023 | $13.38B | +7.2% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 13, 2026 |
| Dec 31, 2022 | $12.48B | +2.3% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 18, 2025 |
| Dec 31, 2021 | $12.19B | +10.2% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 16, 2024 |
| Dec 31, 2020 | $11.07B | +0.5% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 17, 2023 |
| Dec 31, 2019 | $11.01B | +2.3% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 18, 2022 |
| Dec 31, 2018 | $10.77B | +7.7% | Revenues | 10-K filed Feb 19, 2019 |
| Dec 31, 2017 | $10.00B | +6.3% | Revenues | 10-K filed Feb 19, 2019 |
| Dec 31, 2016 | $9.41B | −0.7% | Revenues | 10-K filed Feb 19, 2019 |
Aon plc reported revenue under 2 different XBRL concepts across these years (often after the 2018 change in revenue-recognition rules, ASC 606). Each row shows the concept used, so you can judge comparability.
Quarterly revenue
Quarters reported in 10-Q filings. Fourth quarters are usually reported only inside the annual 10-K, so they are not listed separately here; we do not estimate them.
| Quarter | Revenue (USD) | vs same quarter a year earlier | Source |
|---|---|---|---|
| 3 months ended Sep 30, 2026 | $4.10B | +2.6% | 10-Q filed Oct 28, 2026 |
| 3 months ended Jun 30, 2026 | $4.25B | +2.2% | 10-Q filed Jul 29, 2026 |
| 3 months ended Mar 31, 2026 | $5.03B | +6.4% | 10-Q filed May 1, 2026 |
| 3 months ended Sep 30, 2025 | $4.00B | +7.4% | 10-Q filed Oct 28, 2026 |
| 3 months ended Jun 30, 2025 | $4.16B | +10.5% | 10-Q filed Jul 29, 2026 |
| 3 months ended Mar 31, 2025 | $4.73B | +16.2% | 10-Q filed May 1, 2026 |
| 3 months ended Sep 30, 2024 | $3.72B | +26.0% | 10-Q filed Oct 31, 2025 |
| 3 months ended Jun 30, 2024 | $3.76B | +18.4% | 10-Q filed Jul 25, 2025 |
Source: SEC EDGAR XBRL company facts for CIK 315293 (raw data). Most recent filing in this dataset: 10-Q filed Oct 28, 2026. SEC data file dated Nov 3, 2026; page built Nov 5, 2026. Figures are as most recently reported, including restatements. How we select figures.