

Compare Aon versus Marsh McLennan for CEO Rating, Overall Culture Score, Brand Ranking, and other ratings. Results were generated by 128 employees and customers of Aon and 247 employees and customers of Marsh McLennan.
| 41% | Promoters |
|---|---|
| 15% | Passive |
| 44% | Detractors |
| 46% | Promoters |
|---|---|
| 15% | Passive |
| 39% | Detractors |
Net Promoter Score
Winner by 10
CEO Rating
Winner by 3%