| AllState Insurance Company |  |
| SAFECO Insurance Company |  |
| Auto Owners Insurance Company |  |
| Progressive Insurance Company |
 |
| Guide One Insurance Company | |
| St. Paul Travelers Insurance |
 |
| GMAC Insurance Company |  |
| Old Republic Surety |  |
| CNA Surety |
 |
| Victoria Insurance Company | |
| Infinity Insurance Company |  |