AON vs MRSH
Aon PLC and Marsh & McLennan Companies, Inc., side by side — 10 fiscal years reported in USD, drawn from SEC filings.
At a glance
Most recent reported year
| Metric | AON | MRSH |
|---|---|---|
| Revenue | $17.2B | $27.0B |
| Net income | $3.7B | $4.2B |
| Gross margin | — | — |
| Net margin | 21.5% | 15.4% |
| Return on equity | 47.8% | — |
| Diluted EPS | $17.02 | $8.43 |
| Dividend / share | $2.91 | $3.43 |
| Payout ratio | 17.0% | 40.8% |
| Free cash flow | $3.2B | $5.0B |
| Equity | $9.4B | — |
| Net debt / equity | 1.50× | — |
| Current ratio | 1.11× | 1.10× |
| Revenue CAGR 5y | 9.2% | 9.4% |
| Profit CAGR 5y | 13.4% | 15.6% |
MRSH bills 1.6× the revenue of AON, and AON keeps more of each dollar of revenue as profit (21.5% against 15.4%).
The stronger figure of the pair is set in bold. That is arithmetic, not a recommendation — this page does not pick a winner.
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Revenue by year
10 years side by side
| Fiscal year | AON | MRSH |
|---|---|---|
| FY2025 | $17.2B | $27.0B |
| FY2024 | $15.7B | $24.5B |
| FY2023 | $13.4B | $22.7B |
| FY2022 | $12.5B | $20.7B |
| FY2021 | $12.2B | $19.8B |
| FY2020 | $11.1B | $17.2B |
| FY2019 | $11.0B | $16.7B |
| FY2018 | $10.8B | $14.9B |
| FY2017 | $10.0B | $14.0B |
| FY2016 | $9.4B | $13.2B |
Net income by year
Bottom line
| Fiscal year | AON | MRSH |
|---|---|---|
| FY2025 | $3.7B | $4.2B |
| FY2024 | $2.7B | $4.1B |
| FY2023 | $2.6B | $3.8B |
| FY2022 | $2.6B | $3.0B |
| FY2021 | $1.3B | $3.1B |
| FY2020 | $2.0B | $2.0B |
| FY2019 | $1.5B | $1.7B |
| FY2018 | $1.2B | $1.6B |
| FY2017 | $1.3B | $1.5B |
| FY2016 | $1.4B | $1.8B |
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