Directory · California · Workers' compensation
Who writes workers' compensation in California
Ranked by direct premium written in 2025 from the California Department of Insurance market share report (every company, not a top-N list).
245 companies wrote workers' compensation in California in 2025, $12.01B in direct premium. State Compensation Insurance Fund led with 8.0%; the top five hold 26%.
By Sam Alishahi, independent insurance broker · All lines in California
Workers' compensation · California
The companies
| # | Company | NAIC | Home state | Status here | Premium | Share |
|---|---|---|---|---|---|---|
| 1 | State Compensation Insurance Fund | 35076 | CA | Admitted (licensed) | $962.0M | 8.01% |
| 2 | Insurance Company of the West | 27847 | CA | Admitted (licensed) | $705.2M | 5.87% |
| 3 | Travelers Property Casualty Company of America | 25674 | CT | Admitted (licensed) | $562.6M | 4.69% |
| 4 | Hartford Casualty Insurance Company | 29424 | IN | Admitted (licensed) | $438.4M | 3.65% |
| 5 | Zurich American Insurance Company | 16535 | NY | Admitted (licensed) | $407.5M | 3.39% |
| 6 | Technology Insurance Company, Inc. | 42376 | DE | Admitted (licensed) | $366.6M | 3.05% |
| 7 | Zenith Insurance Company | 13269 | CA | Admitted (licensed) | $287.8M | 2.40% |
| 8 | Security National Insurance Company | 19879 | DE | Admitted (licensed) | $257.4M | 2.14% |
| 9 | Cypress Insurance Company | 10855 | CA | Admitted (licensed) | $219.0M | 1.82% |
| 10 | Sentinel Insurance Company, Limited | 11000 | CT | Admitted (licensed) | $211.5M | 1.76% |
| 11 | Safety National Casualty Corporation | 15105 | MO | Admitted (licensed) | $205.4M | 1.71% |
| 12 | Employers Preferred Insurance Company | 10346 | FL | Admitted (licensed) | $201.2M | 1.68% |
| 13 | Pie Insurance Company, (The) | 21857 | OH | Admitted (licensed) | $200.9M | 1.67% |
| 14 | Pacific Compensation Insurance Company | 11555 | CA | Admitted (licensed) | $196.2M | 1.63% |
| 15 | Ace American Insurance Company | 22667 | PA | Admitted (licensed) | $184.7M | 1.54% |
| 16 | National Casualty Company | 11991 | OH | Admitted (licensed) | $184.1M | 1.53% |
| 17 | Federal Insurance Company | 20281 | IN | Admitted (licensed) | $176.8M | 1.47% |
| 18 | Omaha National Casualty Company | 32107 | CA | Admitted (licensed) | $169.3M | 1.41% |
| 19 | Republic Indemnity Company of America | 22179 | CA | Admitted (licensed) | $168.7M | 1.40% |
| 20 | Berkshire Hathaway Homestate Insurance Company | 20044 | NE | Admitted (licensed) | $163.7M | 1.36% |
| 21 | Arch Insurance (UK) Limited | 11150 | MO | Admitted (licensed) | $148.1M | 1.23% |
| 22 | Old Republic Insurance Company | 24147 | PA | Admitted (licensed) | $147.4M | 1.23% |
| 23 | Everest Premier Insurance Company | 16045 | DE | Admitted (licensed) | $139.7M | 1.16% |
| 24 | Service American Indemnity Company | 39152 | TX | Admitted (licensed) | $137.4M | 1.14% |
| 25 | StarStone National Insurance Company | 25496 | DE | Admitted (licensed) | $119.2M | 0.99% |
| 26 | Clear Spring Property and Casualty Company | 15563 | IN | Admitted (licensed) | $118.3M | 0.99% |
| 27 | Praetorian Insurance Company | 37257 | PA | Admitted (licensed) | $109.4M | 0.91% |
| 28 | American Zurich Insurance Company | 40142 | IL | Admitted (licensed) | $109.3M | 0.91% |
| 29 | Oak River Insurance Company | 34630 | NE | Admitted (licensed) | $108.0M | 0.90% |
| 30 | Sequoia Insurance Company | 22985 | CA | Admitted (licensed) | $102.5M | 0.85% |
| 31 | Redwood Fire and Casualty Insurance Company | 11673 | NE | Admitted (licensed) | $98.2M | 0.82% |
| 32 | XL Specialty Insurance Company | 37885 | DE | Admitted (licensed) | $98.0M | 0.82% |
| 33 | Preferred Employers Insurance Company | 10900 | CA | Admitted (licensed) | $97.7M | 0.81% |
| 34 | Mid-Century Insurance Company | 21687 | CA | Admitted (licensed) | $96.7M | 0.81% |
| 35 | Markel Insurance Company | 38970 | IL | Admitted (licensed) | $95.9M | 0.80% |
| 36 | XL Insurance America, Inc. | 24554 | DE | Admitted (licensed) | $90.5M | 0.75% |
| 37 | AIU Insurance Company | 19399 | NY | Admitted (licensed) | $89.8M | 0.75% |
| 38 | Benchmark Insurance Company | 41394 | KS | Admitted (licensed) | $87.6M | 0.73% |
| 39 | National Union Fire Insurance Company of Pittsburgh, Pennsylvania | 19445 | PA | Admitted (licensed) | $86.8M | 0.72% |
| 40 | Employers Assurance Company | 25402 | FL | Admitted (licensed) | $86.6M | 0.72% |
| 41 | American Casualty Company of Reading, Pennsylvania | 20427 | PA | Admitted (licensed) | $84.7M | 0.71% |
| 42 | Arch Indemnity Insurance Company | 30830 | MO | Admitted (licensed) | $84.5M | 0.70% |
| 43 | Compwest Insurance Company | 12177 | CA | Admitted (licensed) | $81.4M | 0.68% |
| 44 | Property and Casualty Insurance Company of Hartford | 34690 | IN | Admitted (licensed) | $78.8M | 0.66% |
| 45 | Wesco Insurance Company | 25011 | DE | Admitted (licensed) | $78.2M | 0.65% |
| 46 | Liberty Mutual Fire Insurance Company | 23035 | WI | Admitted (licensed) | $75.4M | 0.63% |
| 47 | Midwest Employers Casualty Company | 23612 | IA | Admitted (licensed) | $73.7M | 0.61% |
| 48 | STARR INDEMNITY \u0026 LIABILITY COMPANY | 38318 | TX | Admitted (licensed) | $71.4M | 0.59% |
| 49 | NorGUARD Insurance Company | 31470 | NE | Admitted (licensed) | $70.7M | 0.59% |
| 50 | CorePointe Insurance Company | 10499 | DE | Admitted (licensed) | $70.5M | 0.59% |
| 51 | AmTrust Insurance Company | 15954 | DE | Admitted (licensed) | $64.7M | 0.54% |
| 52 | Indemnity Insurance Company of North America | 43575 | PA | Admitted (licensed) | $64.6M | 0.54% |
| 53 | State Farm Fire and Casualty Company | 25143 | IL | Admitted (licensed) | $64.5M | 0.54% |
| 54 | Great American Alliance Insurance Company | 26832 | OH | Admitted (licensed) | $64.5M | 0.54% |
| 55 | Endurance Assurance Corporation | 11551 | DE | Admitted (licensed) | $63.8M | 0.53% |
| 56 | Sunz Insurance Company | 34762 | FL | Admitted (licensed) | $62.8M | 0.52% |
| 57 | Alaska National Insurance Company | 38733 | AK | Admitted (licensed) | $59.0M | 0.49% |
| 58 | Pennsylvania Manufacturers' Association Insurance Company | 12262 | PA | Admitted (licensed) | $58.7M | 0.49% |
| 59 | L M Insurance Corporation | 33600 | IL | Admitted (licensed) | $56.4M | 0.47% |
| 60 | Employers Compensation Insurance Company | 11512 | NV | Admitted (licensed) | $52.3M | 0.44% |
| 61 | ProCentury Insurance Company | 21903 | MI | Admitted (licensed) | $51.6M | 0.43% |
| 62 | State National Insurance Company, Inc. | 12831 | TX | Admitted (licensed) | $50.5M | 0.42% |
| 63 | StarNet Insurance Company | 40045 | IA | Admitted (licensed) | $50.4M | 0.42% |
| 64 | Accident Fund Insurance Company of America | 10166 | MI | Admitted (licensed) | $50.3M | 0.42% |
| 65 | Continental Insurance Company, (The) | 35289 | PA | Admitted (licensed) | $50.1M | 0.42% |
| 66 | ZNAT Insurance Company | 30120 | CA | Admitted (licensed) | $49.9M | 0.42% |
| 67 | Carolina Casualty Insurance Company | 10510 | IA | Admitted (licensed) | $48.0M | 0.40% |
| 68 | Star Insurance Company | 18023 | MI | Admitted (licensed) | $47.4M | 0.39% |
| 69 | Rochdale Insurance Company | 12491 | NY | Admitted (licensed) | $46.7M | 0.39% |
| 70 | Valley Forge Insurance Company | 20508 | PA | Admitted (licensed) | $45.2M | 0.38% |
| 71 | Care West Insurance Company | 10520 | CA | Admitted (licensed) | $44.5M | 0.37% |
| 72 | Sompo America Insurance Company | 11126 | NY | Admitted (licensed) | $43.4M | 0.36% |
| 73 | Starr Specialty Insurance Company | 16109 | TX | Admitted (licensed) | $41.8M | 0.35% |
| 74 | NATIONAL LIABILITY \u0026 FIRE INSURANCE COMPANY | 20052 | CT | Admitted (licensed) | $40.7M | 0.34% |
| 75 | BITCO General Insurance Corporation | 20095 | IA | Admitted (licensed) | $39.0M | 0.32% |
| 76 | Liberty Mutual Insurance Company | 42404 | IL | Admitted (licensed) | $37.2M | 0.31% |
| 77 | Berkshire Hathaway Direct Insurance Company | 10391 | NE | Admitted (licensed) | $34.2M | 0.28% |
| 78 | Southern Insurance Company | 19216 | TX | Admitted (licensed) | $32.8M | 0.27% |
| 79 | Vanliner Insurance Company | 21172 | OH | Admitted (licensed) | $32.1M | 0.27% |
| 80 | QBE Insurance (Europe) Limited | 39217 | PA | Admitted (licensed) | $31.7M | 0.26% |
| 81 | New Hampshire Insurance Company | 23841 | IL | Admitted (licensed) | $31.3M | 0.26% |
| 82 | Berkley National Insurance Company | 38911 | IA | Admitted (licensed) | $30.0M | 0.25% |
| 83 | Accredited Surety and Casualty Company, Inc. | 26379 | FL | Admitted (licensed) | $29.7M | 0.25% |
| 84 | WCF National Insurance Company | 40517 | UT | Admitted (licensed) | $29.0M | 0.24% |
| 85 | Employers Insurance Company of Wausau | 21458 | WI | Admitted (licensed) | $28.5M | 0.24% |
| 86 | National Specialty Insurance Company | 22608 | TX | Admitted (licensed) | $28.3M | 0.24% |
| 87 | Transportation Insurance Company | 20494 | IL | Admitted (licensed) | $28.0M | 0.23% |
| 88 | Everest National Insurance Company | 10120 | DE | Admitted (licensed) | $27.6M | 0.23% |
| 89 | Hanover American Insurance Company (The) | 36064 | NH | Admitted (licensed) | $27.0M | 0.22% |
| 90 | Great Divide Insurance Company | 25224 | ND | Admitted (licensed) | $25.5M | 0.21% |
| 91 | Tokio Marine America Insurance Company | 10945 | NY | Admitted (licensed) | $25.2M | 0.21% |
| 92 | California Insurance Company | 38865 | CA | Admitted (licensed) | $24.9M | 0.21% |
| 93 | Safety First Insurance Company | 11123 | MO | Admitted (licensed) | $24.2M | 0.20% |
| 94 | Sentry Casualty Company | 28460 | WI | Admitted (licensed) | $24.1M | 0.20% |
| 95 | AmGUARD Insurance Company | 42390 | NE | Admitted (licensed) | $23.4M | 0.20% |
| 96 | Chubb Indemnity Insurance Company | 12777 | NY | Admitted (licensed) | $23.1M | 0.19% |
| 97 | Sentry Insurance Company | 24988 | WI | Admitted (licensed) | $22.7M | 0.19% |
| 98 | New York Marine and General Insurance Company | 16608 | NY | Admitted (licensed) | $22.7M | 0.19% |
| 99 | Chubb National Insurance Company | 10052 | IN | Admitted (licensed) | $22.6M | 0.19% |
| 100 | National Fire Insurance Company of Hartford | 20478 | IL | Admitted (licensed) | $22.4M | 0.19% |
| 101 | WCF Select Insurance Company | 21865 | CA | Admitted (licensed) | $22.3M | 0.19% |
| 102 | Tri-State Insurance Company of Minnesota | 31003 | IA | Admitted (licensed) | $21.9M | 0.18% |
| 103 | Ohio Security Insurance Company | 24082 | NH | Admitted (licensed) | $21.2M | 0.18% |
| 104 | Church Mutual Insurance Company, S. I. | 18767 | WI | Admitted (licensed) | $19.2M | 0.16% |
| 105 | Dentists Insurance Company (The) | 40975 | CA | Admitted (licensed) | $18.4M | 0.15% |
| 106 | Nova Casualty Company | 42552 | NY | Admitted (licensed) | $18.1M | 0.15% |
| 107 | First Liberty Insurance Corporation (The) | 33588 | IL | Admitted (licensed) | $17.7M | 0.15% |
| 108 | Allmerica Financial Benefit Insurance Company | 41840 | MI | Admitted (licensed) | $17.0M | 0.14% |
| 109 | Zurich American Insurance Company of Illinois | 27855 | IL | Admitted (licensed) | $17.0M | 0.14% |
| 110 | Wellfleet New York Insurance Company | 20931 | NY | Admitted (licensed) | $15.7M | 0.13% |
| 111 | American Guarantee and Liability Insurance Company | 26247 | NY | Admitted (licensed) | $15.6M | 0.13% |
| 112 | Granite State Insurance Company | 23809 | IL | Admitted (licensed) | $15.2M | 0.13% |
| 113 | Bankers Standard Insurance Company | 18279 | PA | Admitted (licensed) | $14.8M | 0.12% |
| 114 | Manufacturers Alliance Insurance Company | 36897 | PA | Admitted (licensed) | $14.1M | 0.12% |
| 115 | SOMPO AMERICA FIRE \u0026 MARINE INSURANCE COMPANY | 38997 | NY | Admitted (licensed) | $14.0M | 0.12% |
| 116 | Continental Casualty Company | 20443 | IL | Admitted (licensed) | $14.0M | 0.12% |
| 117 | Brotherhood Mutual Insurance Company | 13528 | IN | Admitted (licensed) | $13.9M | 0.12% |
| 118 | Truck Insurance Exchange | 21709 | CA | Admitted (licensed) | $13.5M | 0.11% |
| 119 | Pacific Indemnity Company | 20346 | DE | Admitted (licensed) | $13.4M | 0.11% |
| 120 | Pennsylvania Manufacturers Indemnity Company | 41424 | PA | Admitted (licensed) | $13.1M | 0.11% |
| 121 | UNITED FIRE \u0026 CASUALTY COMPANY | 13021 | IA | Admitted (licensed) | $12.8M | 0.11% |
| 122 | Florists' Mutual Insurance Company | 13978 | IL | Admitted (licensed) | $12.1M | 0.10% |
| 123 | Protective Insurance Company | 12416 | IN | Admitted (licensed) | $12.0M | 0.10% |
| 124 | Wellfleet Insurance Company | 32280 | IN | Admitted (licensed) | $11.9M | 0.10% |
| 125 | Republic Indemnity Company of California | 43753 | CA | Admitted (licensed) | $11.9M | 0.10% |
| 126 | Massachusetts Bay Insurance Company | 22306 | NH | Admitted (licensed) | $11.1M | 0.09% |
| 127 | Imperium Insurance Company | 35408 | TX | Admitted (licensed) | $11.1M | 0.09% |
| 128 | North River Insurance Company (The) | 21105 | NJ | Admitted (licensed) | $11.0M | 0.09% |
| 129 | United States Fire Insurance Company | 21113 | DE | Admitted (licensed) | $10.4M | 0.09% |
| 130 | Continental Indemnity Company | 28258 | NM | Admitted (licensed) | $10.3M | 0.09% |
| 131 | North Pointe Insurance Company | 27740 | PA | Admitted (licensed) | $9.8M | 0.08% |
| 132 | ACIG Insurance Company | 19984 | IL | Admitted (licensed) | $9.7M | 0.08% |
| 133 | HDI Global Insurance Company | 41343 | IL | Admitted (licensed) | $9.6M | 0.08% |
| 134 | Middlesex Insurance Company | 23434 | WI | Admitted (licensed) | $9.6M | 0.08% |
| 135 | Vigilant Insurance Company | 20397 | NY | Admitted (licensed) | $9.4M | 0.08% |
| 136 | National Interstate Insurance Company | 32620 | OH | Admitted (licensed) | $9.3M | 0.08% |
| 137 | Greenwich Insurance Company | 22322 | DE | Admitted (licensed) | $9.0M | 0.08% |
| 138 | Mitsui Sumitomo Insurance Company of America | 20362 | NY | Admitted (licensed) | $9.0M | 0.07% |
| 139 | Berkley Regional Insurance Company | 29580 | IA | Admitted (licensed) | $8.5M | 0.07% |
| 140 | Insurance Company of the State of Pennsylvania (The) | 19429 | IL | Admitted (licensed) | $8.4M | 0.07% |
| 141 | Amerisure Mutual Insurance Company | 23396 | MI | Admitted (licensed) | $8.3M | 0.07% |
| 142 | Palomar Specialty Insurance Company | 20338 | OR | Admitted (licensed) | $8.0M | 0.07% |
| 143 | OBI National Insurance Company | 14190 | PA | Admitted (licensed) | $7.9M | 0.07% |
| 144 | Hartford Underwriters Insurance Company | 30104 | CT | Admitted (licensed) | $7.8M | 0.07% |
| 145 | Milford Casualty Insurance Company | 26662 | DE | Admitted (licensed) | $7.7M | 0.06% |
| 146 | Great American Spirit Insurance Company | 33723 | OH | Admitted (licensed) | $7.4M | 0.06% |
| 147 | Atlantic Specialty Insurance Company | 27154 | NY | Admitted (licensed) | $7.4M | 0.06% |
| 148 | Service Lloyds Insurance Company, a stock company | 43389 | TX | Admitted (licensed) | $7.3M | 0.06% |
| 149 | Mitsui Sumitomo Insurance USA Inc. | 22551 | NY | Admitted (licensed) | $7.2M | 0.06% |
| 150 | West American Insurance Company | 44393 | IN | Admitted (licensed) | $7.1M | 0.06% |
| 151 | Old Republic General Insurance Corporation | 24139 | IL | Admitted (licensed) | $7.1M | 0.06% |
| 152 | Everest Denali Insurance Company | 16044 | DE | Admitted (licensed) | $7.0M | 0.06% |
| 153 | Cherokee Insurance Company | 10642 | MI | Admitted (licensed) | $6.9M | 0.06% |
| 154 | Hanover Insurance Company (The) | 22292 | NH | Admitted (licensed) | $6.7M | 0.06% |
| 155 | Citizens Insurance Company of America | 31534 | MI | Admitted (licensed) | $6.7M | 0.06% |
| 156 | Argonaut Insurance Company | 19801 | NE | Admitted (licensed) | $6.4M | 0.05% |
| 157 | Midwest Insurance Company | 10895 | IL | Admitted (licensed) | $6.2M | 0.05% |
| 158 | MEMIC Indemnity Company | 11030 | NH | Admitted (licensed) | $6.0M | 0.05% |
| 159 | American Home Assurance Company | 19380 | NY | Admitted (licensed) | $5.9M | 0.05% |
| 160 | Commerce and Industry Insurance Company | 19410 | NY | Admitted (licensed) | $5.6M | 0.05% |
| 161 | Twin City Fire Insurance Company (The) | 29459 | IN | Admitted (licensed) | $5.5M | 0.05% |
| 162 | RLI Insurance Company | 13056 | IL | Admitted (licensed) | $5.3M | 0.04% |
| 163 | Nationwide Mutual Insurance Company | 23787 | OH | Admitted (licensed) | $5.3M | 0.04% |
| 164 | Triumphe Casualty Company | 41106 | OH | Admitted (licensed) | $5.2M | 0.04% |
| 165 | Farmers Insurance Exchange | 21652 | CA | Admitted (licensed) | $4.5M | 0.04% |
| 166 | Intrepid Insurance Company | 10749 | IA | Admitted (licensed) | $4.5M | 0.04% |
| 167 | Great American Assurance Company | 26344 | OH | Admitted (licensed) | $4.2M | 0.04% |
| 168 | American Automobile Insurance Company | 21849 | MO | Admitted (licensed) | $4.1M | 0.03% |
| 169 | GuideOne Insurance Company | 15032 | IA | Admitted (licensed) | $4.1M | 0.03% |
| 170 | National Surety Corporation | 21881 | IL | Admitted (licensed) | $3.8M | 0.03% |
| 171 | United Wisconsin Insurance Company | 29157 | WI | Admitted (licensed) | $3.8M | 0.03% |
| 172 | Pharmacists Mutual Insurance Company | 13714 | IA | Admitted (licensed) | $3.8M | 0.03% |
| 173 | CRUM \u0026 FORSTER INDEMNITY COMPANY | 31348 | DE | Admitted (licensed) | $3.8M | 0.03% |
| 174 | Hartford Accident and Indemnity Company | 22357 | CT | Admitted (licensed) | $3.7M | 0.03% |
| 175 | Standard Fire Insurance Company (The) | 19070 | CT | Admitted (licensed) | $3.0M | 0.02% |
| 176 | Trans Pacific Insurance Company | 41238 | NY | Admitted (licensed) | $2.8M | 0.02% |
| 177 | Ace Fire Underwriters Insurance Company | 20702 | PA | Admitted (licensed) | $2.7M | 0.02% |
| 178 | GuideOne Specialty Insurance Company | 14559 | IA | Admitted (licensed) | $2.7M | 0.02% |
| 179 | MAG Mutual Insurance Company | 42617 | GA | Admitted (licensed) | $2.6M | 0.02% |
| 180 | Cincinnati Indemnity Company (The) | 23280 | OH | Admitted (licensed) | $2.4M | 0.02% |
| 181 | Pacific Employers Insurance Company | 22748 | PA | Admitted (licensed) | $2.4M | 0.02% |
| 182 | Nationwide Agribusiness Insurance Company | 28223 | IA | Admitted (licensed) | $2.4M | 0.02% |
| 183 | SAMSUNG FIRE \u0026 MARINE INSURANCE CO., LTD. (U.S. BRANCH) | 38300 | NY | Admitted (licensed) | $2.2M | 0.02% |
| 184 | EastGuard Insurance Company | 14702 | NE | Admitted (licensed) | $2.1M | 0.02% |
| 185 | TNUS Insurance Company DBA: 2570000 | 32301 | NY | Admitted (licensed) | $2.1M | 0.02% |
| 186 | Great Northern Insurance Company | 20303 | IN | Admitted (licensed) | $1.9M | 0.02% |
| 187 | Prescient National Insurance Company | 12773 | NC | Admitted (licensed) | $1.9M | 0.02% |
| 188 | Hartford Insurance Company of the Midwest | 37478 | IN | Admitted (licensed) | $1.8M | 0.01% |
| 189 | General Insurance Company of America | 24732 | NH | Admitted (licensed) | $1.7M | 0.01% |
| 190 | Executive Risk Indemnity, Inc. | 35181 | DE | Admitted (licensed) | $1.5M | 0.01% |
| 191 | TransGuard Insurance Company of America, Inc. | 28886 | IL | Admitted (licensed) | $1.3M | 0.01% |
| 192 | Work First Casualty Company | 31232 | DE | Admitted (licensed) | $1.3M | 0.01% |
| 193 | Stonington Insurance Company | 10340 | PA | Admitted (licensed) | $1.3M | 0.01% |
| 194 | Fireman's Fund Insurance Company | 21873 | IL | Admitted (licensed) | $1.2M | 0.01% |
| 195 | EMPLOYERS MUTUAL CASUALTY COMPANY Employers Mutual Casualty Company) | 21415 | IA | Admitted (licensed) | $1.2M | 0.01% |
| 196 | Chiron Insurance Company | 16356 | IA | Admitted (licensed) | $1.2M | 0.01% |
| 197 | American Summit Insurance Company | 19623 | TX | Admitted (licensed) | $1.2M | 0.01% |
| 198 | Nationwide Mutual Insurance Company | 10723 | OH | Admitted (licensed) | $1.1M | 0.01% |
| 199 | Cincinnati Casualty Company (The) | 28665 | OH | Admitted (licensed) | $1.1M | 0.01% |
| 200 | Sentry Select Insurance Company | 21180 | WI | Admitted (licensed) | $1.0M | 0.01% |
| 201 | Great West Casualty Company | 11371 | NE | Admitted (licensed) | $977,878 | 0.01% |
| 202 | American Interstate Insurance Company | 31895 | NE | Admitted (licensed) | $964,080 | 0.01% |
| 203 | Cincinnati Insurance Company (The) | 10677 | OH | Admitted (licensed) | $811,176 | 0.01% |
| 204 | Ace Property and Casualty Insurance Company | 20699 | PA | Admitted (licensed) | $809,749 | 0.01% |
| 205 | Nationwide Property and Casualty Insurance Company | 37877 | OH | Admitted (licensed) | $796,084 | 0.01% |
| 206 | Great American Insurance Company | 16691 | OH | Admitted (licensed) | $748,896 | 0.01% |
| 207 | Williamsburg National Insurance Company | 25780 | MI | Admitted (licensed) | $701,111 | 0.01% |
| 208 | Argonaut-Midwest Insurance Company | 19828 | NE | Admitted (licensed) | $683,183 | 0.01% |
| 209 | Regent Insurance Company | 24449 | WI | Admitted (licensed) | $662,938 | 0.01% |
| 210 | Trumbull Insurance Company | 27120 | CT | Admitted (licensed) | $631,086 | 0.01% |
| 211 | Westchester Fire Insurance Company | 10030 | PA | Admitted (licensed) | $615,056 | 0.01% |
| 212 | Berkley Casualty Company | 15911 | IA | Admitted (licensed) | $595,181 | 0.00% |
| 213 | Hartford Fire Insurance Company | 19682 | CT | Admitted (licensed) | $592,208 | 0.00% |
| 214 | Nationwide Insurance Company of America | 25453 | OH | Admitted (licensed) | $591,854 | 0.00% |
| 215 | Ascot Insurance Company | 23752 | CO | Admitted (licensed) | $554,674 | 0.00% |
| 216 | West Bend Insurance Company | 15350 | WI | Admitted (licensed) | $545,446 | 0.00% |
| 217 | Cerity Insurance Company | 10006 | NY | Admitted (licensed) | $389,975 | 0.00% |
| 218 | Nationwide General Insurance Company | 23760 | OH | Admitted (licensed) | $370,887 | 0.00% |
| 219 | First National Insurance Company of America | 24724 | NH | Admitted (licensed) | $329,781 | 0.00% |
| 220 | Safeco Insurance Company of America | 24740 | NH | Admitted (licensed) | $312,069 | 0.00% |
| 221 | MEMIC Casualty Company | 14164 | NH | Admitted (licensed) | $302,442 | 0.00% |
| 222 | American Liberty Insurance Company, Inc. | 12200 | UT | Admitted (licensed) | $280,982 | 0.00% |
| 223 | Safeco Insurance Company of Illinois | 39012 | IL | Admitted (licensed) | $271,146 | 0.00% |
| 224 | Gray Insurance Company (The) | 36307 | LA | Admitted (licensed) | $252,993 | 0.00% |
| 225 | Cumis Insurance Society Incorporated | 10847 | IA | Admitted (licensed) | $193,883 | 0.00% |
| 226 | AmFed Causualty Insurance Company | 11963 | MS | Admitted (licensed) | $193,424 | 0.00% |
| 227 | Riverport Insurance Company | 36684 | IA | Admitted (licensed) | $191,275 | 0.00% |
| 228 | Utica Mutual Insurance Company | 25976 | NY | Admitted (licensed) | $133,310 | 0.00% |
| 229 | Federated Rural Electric Insurance Exchange | 11118 | KS | Admitted (licensed) | $131,357 | 0.00% |
| 230 | Travelers Indemnity Company (The) | 25658 | CT | Admitted (licensed) | $110,993 | 0.00% |
| 231 | AIG Property Casualty Company | 19402 | IL | Admitted (licensed) | $107,663 | 0.00% |
| 232 | Freedom Specialty Insurance Company | 22209 | OH | Admitted (licensed) | $86,937 | 0.00% |
| 233 | Sagamore Insurance Company | 40460 | IN | Admitted (licensed) | $50,615 | 0.00% |
| 234 | Key Risk Insurance Company | 10885 | IA | Admitted (licensed) | $39,669 | 0.00% |
| 235 | OBI America Insurance Company | 15645 | PA | Admitted (licensed) | $34,451 | 0.00% |
| 236 | Crestbrook Insurance Company | 18961 | OH | Admitted (licensed) | $33,766 | 0.00% |
| 237 | National American Insurance Company | 23663 | OK | Admitted (licensed) | $25,961 | 0.00% |
| 238 | Petroleum Casualty Company | 12297 | TX | Admitted (licensed) | $20,690 | 0.00% |
| 239 | American Fire and Casualty Company | 24066 | NH | Admitted (licensed) | $20,100 | 0.00% |
| 240 | Wausau Underwriters Insurance Company | 26042 | WI | Admitted (licensed) | $10,558 | 0.00% |
| 241 | Ohio Casualty Insurance Company (The) | 24074 | NH | Admitted (licensed) | $9,205 | 0.00% |
| 242 | American National Property and Casualty Company | 28401 | NE | Admitted (licensed) | $2,573 | 0.00% |
| 243 | Scottsdale Indemnity Company | 15580 | OH | Admitted (licensed) | $1,291 | 0.00% |
| 244 | Frank Winston Crum Insurance Company | 11600 | FL | Admitted (licensed) | $1,008 | 0.00% |
| 245 | Westport Insurance Corporation | 39845 | MO | Admitted (licensed) | $814 | 0.00% |
Method and source
Source: the California Department of Insurance company list, read 2026-10-17 and the surplus lines list. California's company search lists every company on file (all lines, including some no longer active); P&C status comes from the merge. "Premium" is direct premium written in the state for the year shown; "share" is that company's part of the state total for the line. A company can be licensed for a line and write none of it, and a surplus lines insurer can write a line without a state license for it.
Open to use. Cite "Alishahi Insurance insurance company directory" and link here. CSV · JSON.
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