| Rank |
Group |
Direct premiums written (1) |
Market share |
| 1 |
Travelers Companies |
$1,976,227 |
8.3% |
| 2 |
Liberty Mutual Holding Co. |
1,598,403 |
6.7 |
| 3 |
Zurich Financial Services Ltd. |
1,585,895 |
6.7 |
| 4 |
Progressive Corp. |
1,458,727 |
6.2 |
| 5 |
American International Group |
1,111,197 |
4.7 |
| 6 |
Nationwide Mutual Group |
914,355 |
3.9 |
| 7 |
Old Republic International |
731,981 |
3.1 |
| 8 |
Auto-Owners 探花精选 Co. |
540,825 |
2.3 |
| 9 |
Hartford Financial Services |
523,736 |
2.2 |
| 10 |
American Financial Group Inc. |
471,237 |
2.0 |
(1) Before reinsurance transactions, excluding state funds.
Source: SNL Financial LC. |