| Rank |
Group |
Direct premiums written (1) |
Market share |
| 1 |
State Farm Mutual Automobile Insurance |
$15,672,281 |
21.9% |
| 2 |
Allstate Corp. |
6,865,832 |
9.6 |
| 3 |
Zurich Financial Services Ltd. |
4,703,100 |
6.6 |
| 4 |
Liberty Mutual Holding Co. |
3,729,987 |
5.2 |
| 5 |
Travelers Companies |
3,295,031 |
4.6 |
| 6 |
USAA Insurance Group |
3,175,416 |
4.4 |
| 7 |
Nationwide Mutual Group |
2,832,201 |
4.0 |
| 8 |
Chubb Corp. |
1,763,926 |
2.5 |
| 9 |
American Family Mutual Insurance Co. |
1,514,843 |
2.1 |
| 10 |
Citizens Property Insurance Corp. |
1,156,647 |
1.6 |
(1) Before reinsurance transactions, includes some state funds.
Source: SNL Financial LC. |