Workers' Compensation Companies by Market Share

 

For more information on any company, click the Company Name "Info" link. To view all companies in the same group, click the NAIC Group Number.

Company NameState of DomicileNAIC NumberNAIC Group Number
STATE COMPENSATION INSURANCE FUND (Info)
CA
35076
0000
INSURANCE COMPANY OF THE WEST (Info)
CA
27847
0922
TRAVELERS PROPERTY CASUALTY COMPANY OF AMERICA (Info)
CT
25674
3548
CYPRESS INSURANCE COMPANY (Info)
CA
10855
0031
SECURITY NATIONAL INSURANCE COMPANY (Info)
DE
19879
2538
ZURICH AMERICAN INSURANCE COMPANY (Info)
NY
16535
0212
ZENITH INSURANCE COMPANY (Info)
CA
13269
0158
EVEREST NATIONAL INSURANCE COMPANY (Info)
DE
10120
1120
REDWOOD FIRE AND CASUALTY INSURANCE COMPANY (Info)
NE
11673
0031
ACE AMERICAN INSURANCE COMPANY (Info)
PA
22667
0626
FEDERAL INSURANCE COMPANY (Info)
IN
20281
0626
EMPLOYERS PREFERRED INSURANCE COMPANY (Info)
FL
10346
3363
TECHNOLOGY INSURANCE COMPANY, INC. (Info)
DE
42376
2538
FALLS LAKE FIRE AND CASUALTY COMPANY (Info)
CA
15884
3494
AMERICAN ZURICH INSURANCE COMPANY (Info)
IL
40142
0212
ARCH INSURANCE COMPANY (Info)
MO
11150
1279
PREFERRED EMPLOYERS INSURANCE COMPANY (Info)
CA
10900
0098
NATIONAL UNION FIRE INSURANCE COMPANY OF PITTSBURGH, PA (Info)
PA
19445
0012
PACIFIC COMPENSATION INSURANCE COMPANY (Info)
CA
11555
4485
CALIFORNIA INSURANCE COMPANY (Info)
CA
38865
0031
EMPLOYERS ASSURANCE COMPANY (Info)
FL
25402
3363
NORGUARD INSURANCE COMPANY (Info)
PA
31470
0031
WESCO INSURANCE COMPANY (Info)
DE
25011
2538
MID-CENTURY INSURANCE COMPANY (Info)
CA
21687
0069
OAK RIVER INSURANCE COMPANY (Info)
NE
34630
0031
BENCHMARK INSURANCE COMPANY (Info)
KS
41394
4886
COMPWEST INSURANCE COMPANY (Info)
CA
12177
0572
OLD REPUBLIC INSURANCE COMPANY (Info)
PA
24147
0150
OLD REPUBLIC GENERAL INSURANCE CORPORATION (Info)
IL
24139
0150
REPUBLIC INDEMNITY COMPANY OF CALIFORNIA (Info)
CA
43753
0084
BERKSHIRE HATHAWAY HOMESTATE INSURANCE COMPANY (Info)
NE
20044
0031
PROPERTY AND CASUALTY INSURANCE COMPANY OF HARTFORD (Info)
IN
34690
0091
MARKEL INSURANCE COMPANY (Info)
IL
38970
0785
SENTINEL INSURANCE COMPANY, LTD. (Info)
CT
11000
0091
STATE NATIONAL INSURANCE COMPANY, INC. (Info)
TX
12831
0785
STARR INDEMNITY & LIABILITY COMPANY (Info)
TX
38318
4670
ALASKA NATIONAL INSURANCE COMPANY (Info)
AK
38733
0000
HARTFORD INSURANCE COMPANY OF THE MIDWEST (Info)
IN
37478
0091
STATE FARM FIRE AND CASUALTY COMPANY (Info)
IL
25143
0176
STAR INSURANCE COMPANY (Info)
MI
18023
0748
STARSTONE NATIONAL INSURANCE COMPANY (Info)
DE
25496
4725
LIBERTY INSURANCE CORPORATION (Info)
IL
42404
0111
HARTFORD ACCIDENT AND INDEMNITY COMPANY (Info)
CT
22357
0091
AMERICAN HOME ASSURANCE COMPANY (Info)
NY
19380
0012
TWIN CITY FIRE INSURANCE COMPANY (Info)
IN
29459
0091
SAFETY NATIONAL CASUALTY CORPORATION (Info)
MO
15105
3098
LIBERTY MUTUAL FIRE INSURANCE COMPANY (Info)
WI
23035
0111
ZNAT INSURANCE COMPANY (Info)
CA
30120
0158
HARTFORD FIRE INSURANCE COMPANY (Info)
CT
19682
0091
HARTFORD UNDERWRITERS INSURANCE COMPANY (Info)
CT
30104
0091

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Last Revised - August 13, 2019 08:55 AM
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