| Rank |
Group |
Direct premiums written (1) |
Market share (2) |
| 1 |
State Farm Mutual Automobile Insurance |
$52,378,166 |
10.9% |
| 2 |
Zurich Financial Services Ltd. |
27,442,024 |
5.7 |
| 3 |
Allstate Corp. |
25,863,277 |
5.4 |
| 4 |
American International Group |
25,569,346 |
5.3 |
| 5 |
Liberty Mutual Holding Co. |
25,318,187 |
5.3 |
| 6 |
Travelers Cos. |
21,541,289 |
4.5 |
| 7 |
Berkshire Hathaway Inc. |
16,560,344 |
3.4 |
| 8 |
Nationwide Mutual Group |
14,875,572 |
3.1 |
| 9 |
Progressive Corp. |
14,699,901 |
3.1 |
| 10 |
USAA Insurance Group |
11,235,772 |
2.3 |
(1) Before reinsurance transactions.
(2) Based on U.S. total including territories.
Source: SNL Financial LC. |