| Rank |
Group |
Direct premiums written (1) |
Market share |
| 1 |
Travelers Companies |
$2,013,836 |
8.2% |
| 2 |
Zurich Financial Services Ltd |
1,647,590 |
6.7 |
| 3 |
Liberty Mutual Holding Co. |
1,609,250 |
6.5 |
| 4 |
Progressive Corp. |
1,552,023 |
6.3 |
| 5 |
American International Group |
1,119,049 |
4.6 |
| 6 |
Nationwide Mutual Group |
959,617 |
3.9 |
| 7 |
Old Republic International |
675,460 |
2.7 |
| 8 |
Auto-Owners 探花精选 Co. |
566,205 |
2.3 |
| 9 |
Hartford Financial Services |
547,889 |
2.2 |
| 10 |
American Financial Group Inc. |
528,808 |
2.2 |
(1) Before reinsurance transactions, excluding state funds.
Source: SNL Financial LC. |