| ACE PROPERTY AND CASUALTY INSURANCE COMPANY | 2620 | 20699 | 626 | PA | Workers' Compensation |
| AIU INSURANCE COMPANY | 2798 | 19399 | 12 | NY | Workers' Compensation |
| AMERICAN AUTOMOBILE INSURANCE COMPANY | 2807 | 21849 | 761 | MO | Workers' Compensation |
| AMERICAN ZURICH INSURANCE COMPANY | 6667 | 40142 | 212 | IL | Workers' Compensation |
| ARCH INSURANCE COMPANY | 6740 | 11150 | 1279 | MO | Workers' Compensation |
| ARGONAUT INSURANCE COMPANY | 3439 | 19801 | 408 | NE | Workers' Compensation |
| BENCHMARK INSURANCE COMPANY | 3817 | 41394 | 4886 | KS | Workers' Compensation |
| BERKSHIRE HATHAWAY DIRECT INSURANCE COMPANY | 6148 | 10391 | 31 | NE | Workers' Compensation |
| BITCO GENERAL INSURANCE CORPORATION | 3665 | 20095 | 150 | IA | Workers' Compensation |
| CHEROKEE INSURANCE COMPANY | 6560 | 10642 | - | MI | Workers' Compensation |
| CHURCH MUTUAL INSURANCE COMPANY, S.I. | 6603 | 18767 | 4851 | WI | Workers' Compensation |
| COMMERCE AND INDUSTRY INSURANCE COMPANY | 3469 | 19410 | 12 | NY | Workers' Compensation |
| CONTINENTAL CASUALTY COMPANY | 2647 | 20443 | 218 | IL | Workers' Compensation |
| CONTINENTAL INSURANCE COMPANY (THE) | 6008 | 35289 | 218 | PA | Workers' Compensation |
| CRESTBROOK INSURANCE COMPANY | 6751 | 18961 | 140 | OH | Workers' Compensation |
| CYPRESS INSURANCE COMPANY | 3641 | 10855 | 31 | CA | Workers' Compensation |
| EMPLOYERS MUTUAL CASUALTY COMPANY | 3491 | 21415 | 62 | IA | Workers' Compensation |
| FEDERAL INSURANCE COMPANY | 2652 | 20281 | 626 | IN | Workers' Compensation |
| FIREMAN'S FUND INSURANCE COMPANY | 2668 | 21873 | 761 | IL | Workers' Compensation |
| GREAT AMERICAN ASSURANCE COMPANY | 3388 | 26344 | 84 | OH | Workers' Compensation |
| GREENWICH INSURANCE COMPANY | 3265 | 22322 | 968 | DE | Workers' Compensation |
| GUIDEONE INSURANCE COMPANY | 3397 | 15032 | 303 | IA | Workers' Compensation |
| GUIDEONE SPECIALTY INSURANCE COMPANY | 3877 | 14559 | 303 | IA | Workers' Compensation |
| HARTFORD ACCIDENT AND INDEMNITY COMPANY | 2827 | 22357 | 91 | CT | Workers' Compensation |
| HARTFORD CASUALTY INSURANCE COMPANY | 6834 | 29424 | 91 | IN | Workers' Compensation |
| HARTFORD FIRE INSURANCE COMPANY | 2664 | 19682 | 91 | CT | Workers' Compensation |
| INSURANCE COMPANY OF THE STATE OF PENNSYLVANIA (THE) | 2760 | 19429 | 12 | IL | Workers' Compensation |
| MASSACHUSETTS BAY INSURANCE COMPANY | 3500 | 22306 | 88 | NH | Workers' Compensation |
| MIDDLESEX INSURANCE COMPANY | 3857 | 23434 | 169 | WI | Workers' Compensation |
| MITSUI SUMITOMO INSURANCE USA INC. | 7509 | 22551 | 4715 | NY | Workers' Compensation |
| NATIONAL AMERICAN INSURANCE COMPANY | 3006 | 23663 | 4935 | OK | Workers' Compensation |
| NATIONAL CASUALTY COMPANY | 2690 | 11991 | 140 | OH | Workers' Compensation |
| NATIONAL FIRE INSURANCE COMPANY OF HARTFORD | 2691 | 20478 | 218 | IL | Workers' Compensation |
| NATIONAL SURETY CORPORATION | 5819 | 21881 | 761 | IL | Workers' Compensation |
| NATIONAL UNION FIRE INSURANCE COMPANY OF PITTSBURGH, PA | 2693 | 19445 | 12 | PA | Workers' Compensation |
| NEW YORK MARINE AND GENERAL INSURANCE COMPANY | 6811 | 16608 | 256 | NY | Workers' Compensation |
| PENNSYLVANIA MANUFACTURERS' ASSOCIATION INSURANCE COMPANY | 5979 | 12262 | 150 | PA | Workers' Compensation |
| PROCENTURY INSURANCE COMPANY | 3647 | 21903 | 572 | MI | Workers' Compensation |
| PROTECTIVE INSURANCE COMPANY | 3604 | 12416 | 155 | IN | Workers' Compensation |
| REPUBLIC INDEMNITY COMPANY OF AMERICA | 5846 | 22179 | 84 | CA | Workers' Compensation |
| SAGAMORE INSURANCE COMPANY | 6986 | 40460 | 155 | IN | Workers' Compensation |
| SOMPO AMERICA INSURANCE COMPANY | 3813 | 11126 | 3219 | NY | Workers' Compensation |
| SOUTHERN INSURANCE COMPANY | 3422 | 19216 | 2538 | TX | Workers' Compensation |
| STANDARD FIRE INSURANCE COMPANY (THE) | 2788 | 19070 | 3548 | CT | Workers' Compensation |
| STAR INSURANCE COMPANY | 6923 | 18023 | 572 | MI | Workers' Compensation |
| TRAVELERS INDEMNITY COMPANY OF CONNECTICUT (THE) | 2649 | 25682 | 3548 | CT | Workers' Compensation |
| TRUCK INSURANCE EXCHANGE | 3169 | 21709 | 69 | CA | Workers' Compensation |
| TWIN CITY FIRE INSURANCE COMPANY | 6835 | 29459 | 91 | IN | Workers' Compensation |
| WESTCHESTER FIRE INSURANCE COMPANY | 5928 | 10030 | 626 | PA | Workers' Compensation |
| ZENITH INSURANCE COMPANY | 3316 | 13269 | 158 | CA | Workers' Compensation |