Compare
Aon plc vs Marsh & McLennan Companies, Inc. vs Willis Towers Watson PLC vs Erie Indemnity Co
| Latest fiscal year | Aon plc AON | Marsh & McLennan Companies, Inc. MRSH | Willis Towers Watson PLC WTW | Erie Indemnity Co ERIE |
|---|---|---|---|---|
| Year ended | 2025-12-31 | 2025-12-31 | 2025-12-31 | 2025-12-31 |
| Revenue | $17.18B | $26.98B | $9.71B | $4.07B |
| Revenue growth (YoY) | +9.4% | +10.3% | -2.2% | +7.2% |
| Gross margin | n/a | n/a | n/a | n/a |
| Operating margin | 25.3% | 23.1% | 23.0% | 17.6% |
| Net margin | 21.8% | 15.4% | 16.5% | 13.8% |
| Net income | $3.75B | $4.16B | $1.60B | $559.34M |
| EPS (Diluted) | $17.02 | $8.43 | $16.26 | n/a |
| Operating cash flow | $3.48B | $5.29B | $1.77B | $686.66M |
| Free cash flow | $3.22B | $5.00B | $1.55B | $570.97M |
| Cash & equivalents | $1.20B | $2.69B | $3.13B | n/a |
| Total assets | $50.78B | $58.71B | $29.53B | $3.36B |
| Total liabilities | $41.24B | n/a | $21.48B | $1.07B |
| Shareholders' equity | $9.46B | $15.31B | $7.98B | $2.28B |
| Return on year-end equity | 39.6% | 27.2% | 20.1% | 24.5% |
| Shares outstanding | n/a | 485.00M | n/a | n/a |
Revenue, most recent five fiscal years
| Fiscal year | Aon plc | Marsh & McLennan Companies, Inc. | Willis Towers Watson PLC | Erie Indemnity Co |
|---|---|---|---|---|
| Latest | $17.18B Ended 2025-12-31 | $26.98B Ended 2025-12-31 | $9.71B Ended 2025-12-31 | $4.07B Ended 2025-12-31 |
| 1 year earlier | $15.70B Ended 2024-12-31 | $24.46B Ended 2024-12-31 | $9.93B Ended 2024-12-31 | $3.80B Ended 2024-12-31 |
| 2 years earlier | $13.38B Ended 2023-12-31 | $22.74B Ended 2023-12-31 | $9.48B Ended 2023-12-31 | $3.27B Ended 2023-12-31 |
| 3 years earlier | $12.48B Ended 2022-12-31 | $20.72B Ended 2022-12-31 | $8.87B Ended 2022-12-31 | $2.84B Ended 2022-12-31 |
| 4 years earlier | $12.19B Ended 2021-12-31 | $19.82B Ended 2021-12-31 | $9.00B Ended 2021-12-31 | $2.63B Ended 2021-12-31 |