Arthur J. Gallagher & Co. revenue by year
Over the 10 fiscal years shown, revenue went from $5.59B (year ended Dec 31, 2016) to $13.94B (year ended Dec 31, 2025), a compound annual growth rate of 10.7%. The fastest growth was +20.7% in the year ended Dec 31, 2025; the weakest year was −2.7% (year ended Dec 31, 2020).
Annual revenue
| Fiscal year ended | Revenue (USD) | Change | XBRL concept | Reported in |
|---|---|---|---|---|
| Dec 31, 2025 | $13.94B | +20.7% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 17, 2026 |
| Dec 31, 2024 | $11.55B | +14.7% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 17, 2026 |
| Dec 31, 2023 | $10.07B | +17.8% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 17, 2026 |
| Dec 31, 2022 | $8.55B | +4.2% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 18, 2025 |
| Dec 31, 2021 | $8.21B | +17.2% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 9, 2024 |
| Dec 31, 2020 | $7.00B | −2.7% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 10, 2023 |
| Dec 31, 2019 | $7.20B | +3.8% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 18, 2022 |
| Dec 31, 2018 | $6.93B | +12.6% | RevenueFromContractWithCustomerExcludingAssessedTax | 10-K filed Feb 8, 2021 |
| Dec 31, 2017 | $6.16B | +10.1% | Revenues | 10-K filed Feb 12, 2018 |
| Dec 31, 2016 | $5.59B | +3.8% | Revenues | 10-K filed Feb 12, 2018 |
Arthur J. Gallagher & Co. 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 Jun 30, 2026 | $4.00B | +24.2% | 10-Q filed Aug 5, 2026 |
| 3 months ended Mar 31, 2026 | $4.76B | +27.7% | 10-Q filed May 7, 2026 |
| 3 months ended Sep 30, 2025 | $3.37B | +19.9% | 10-Q filed Nov 10, 2025 |
| 3 months ended Jun 30, 2025 | $3.22B | +16.1% | 10-Q filed Aug 5, 2026 |
| 3 months ended Mar 31, 2025 | $3.73B | +14.4% | 10-Q filed May 7, 2026 |
| 3 months ended Sep 30, 2024 | $2.81B | +12.6% | 10-Q filed Nov 10, 2025 |
| 3 months ended Jun 30, 2024 | $2.78B | +13.7% | 10-Q filed Aug 1, 2025 |
| 3 months ended Mar 31, 2024 | $3.26B | +20.3% | 10-Q filed May 2, 2025 |
Source: SEC EDGAR XBRL company facts for CIK 354190 (raw data). Most recent filing in this dataset: 10-Q filed Aug 5, 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.