|   | AON | Aon Plc | 
| Insurance Agents Brokers & Services | 
| Book value per $ invested | $ 0.12 | 
| Leverage | 85.02% | 
| Market Cap | $ 65.4B | 
| PE | 25.21 | 
| Dividend Yield | 0.00% | 
| Profit | $ 2.6B | 
| Margin | 15.46% | 
Aon plc is a multinational professional services firm that sells a range of financial risk-mitigation products, including insurance, pension administration, and health-insurance plans.