Directory · California · Earthquake
Who writes earthquake 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).
128 companies wrote earthquake in California in 2025, $2.23B in direct premium. California Earthquake Authority led with 42.4%; the top five hold 75%.
By Sam Alishahi, independent insurance broker · All lines in California
Earthquake · California
The companies
| # | Company | NAIC | Home state | Status here | Premium | Share |
|---|---|---|---|---|---|---|
| 1 | California Earthquake Authority | 10779 | CA | Admitted (licensed) | $947.3M | 42.39% |
| 2 | Factory Mutual Insurance Company | 21482 | RI | Admitted (licensed) | $256.9M | 11.50% |
| 3 | Palomar Specialty Insurance Company | 20338 | OR | Admitted (licensed) | $253.3M | 11.33% |
| 4 | Zurich American Insurance Company | 16535 | NY | Admitted (licensed) | $117.8M | 5.27% |
| 5 | Golden Bear Insurance Company | 39861 | CA | Admitted (licensed) | $95.0M | 4.25% |
| 6 | Coastal Select Insurance Company | 10887 | CA | Admitted (licensed) | $89.0M | 3.98% |
| 7 | GeoVera Insurance Company | 10799 | CA | Admitted (licensed) | $65.1M | 2.91% |
| 8 | Federal Insurance Company | 20281 | IN | Admitted (licensed) | $58.1M | 2.60% |
| 9 | Affiliated F M Insurance Company | 10014 | RI | Admitted (licensed) | $38.3M | 1.71% |
| 10 | Insurance Company of the West | 27847 | CA | Admitted (licensed) | $36.8M | 1.64% |
| 11 | XL Insurance America, Inc. | 24554 | DE | Admitted (licensed) | $31.2M | 1.40% |
| 12 | Privilege Underwriters Reciprocal Exchange, PURE Risk Mgt, Atty-in-Fact | 12873 | FL | Admitted (licensed) | $29.3M | 1.31% |
| 13 | Travelers Property Casualty Company of America | 25674 | CT | Admitted (licensed) | $29.3M | 1.31% |
| 14 | Bankers Standard Insurance Company | 18279 | PA | Admitted (licensed) | $21.2M | 0.95% |
| 15 | Employers Insurance Company of Wausau | 21458 | WI | Admitted (licensed) | $20.1M | 0.90% |
| 16 | Swiss Re Corporate Solutions Elite Insurance Corporation | 29700 | MO | Admitted (licensed) | $18.3M | 0.82% |
| 17 | Standard Fire Insurance Company (The) | 19070 | CT | Admitted (licensed) | $16.9M | 0.76% |
| 18 | Care West Insurance Company | 10520 | CA | Admitted (licensed) | $14.8M | 0.66% |
| 19 | Continental Casualty Company | 20443 | IL | Admitted (licensed) | $12.0M | 0.54% |
| 20 | Cincinnati Insurance Company (The) | 10677 | OH | Admitted (licensed) | $11.2M | 0.50% |
| 21 | Homesite Insurance Company of California | 11005 | CA | Admitted (licensed) | $8.2M | 0.37% |
| 22 | Allianz Global Risks US Insurance Company | 35300 | IL | Admitted (licensed) | $7.4M | 0.33% |
| 23 | Property and Casualty Insurance Company of Hartford | 34690 | IN | Admitted (licensed) | $6.9M | 0.31% |
| 24 | California Capital Insurance Company | 13544 | CA | Admitted (licensed) | $4.4M | 0.20% |
| 25 | Liberty Mutual Fire Insurance Company | 23035 | WI | Admitted (licensed) | $3.0M | 0.13% |
| 26 | Ace American Insurance Company | 22667 | PA | Admitted (licensed) | $2.7M | 0.12% |
| 27 | Response Indemnity Company of California | 10970 | CA | Admitted (licensed) | $2.4M | 0.11% |
| 28 | Berkshire Hathaway Direct Insurance Company | 10391 | NE | Admitted (licensed) | $2.3M | 0.10% |
| 29 | RSUI Indemnity Company | 22314 | NH | Admitted (licensed) | $2.3M | 0.10% |
| 30 | Continental Insurance Company, (The) | 35289 | PA | Admitted (licensed) | $2.3M | 0.10% |
| 31 | Federated Mutual Insurance Company | 13935 | MN | Admitted (licensed) | $2.2M | 0.10% |
| 32 | Residence Mutual Insurance Company | 15776 | CA | Admitted (licensed) | $2.0M | 0.09% |
| 33 | Integon National Insurance Company | 29742 | IL | Admitted (licensed) | $1.9M | 0.08% |
| 34 | GuideOne Insurance Company | 15032 | IA | Admitted (licensed) | $1.8M | 0.08% |
| 35 | Stillwater Insurance Company | 25180 | CA | Admitted (licensed) | $1.8M | 0.08% |
| 36 | Trumbull Insurance Company | 27120 | CT | Admitted (licensed) | $1.8M | 0.08% |
| 37 | Wawanesa General Insurance Company | 10683 | CA | Admitted (licensed) | $1.8M | 0.08% |
| 38 | Truck Insurance Exchange | 21709 | CA | Admitted (licensed) | $1.6M | 0.07% |
| 39 | Farmers Insurance Exchange | 21652 | CA | Admitted (licensed) | $1.3M | 0.06% |
| 40 | Fidelity and Deposit Company of Maryland (The) | 39306 | IL | Admitted (licensed) | $1.1M | 0.05% |
| 41 | Pacific Specialty Insurance Company | 37850 | CA | Admitted (licensed) | $1.0M | 0.05% |
| 42 | Fireman's Fund Insurance Company | 21873 | IL | Admitted (licensed) | $961,840 | 0.04% |
| 43 | SOMPO AMERICA FIRE \u0026 MARINE INSURANCE COMPANY | 38997 | NY | Admitted (licensed) | $944,590 | 0.04% |
| 44 | Sentinel Insurance Company, Limited | 11000 | CT | Admitted (licensed) | $885,983 | 0.04% |
| 45 | Nationwide Mutual Insurance Company | 23787 | OH | Admitted (licensed) | $881,337 | 0.04% |
| 46 | Mid-Century Insurance Company | 21687 | CA | Admitted (licensed) | $726,349 | 0.03% |
| 47 | Nationwide Agribusiness Insurance Company | 28223 | IA | Admitted (licensed) | $717,653 | 0.03% |
| 48 | California Casualty Indemnity Exchange, The | 20117 | CA | Admitted (licensed) | $583,508 | 0.03% |
| 49 | Horace Mann Insurance Company | 22578 | IL | Admitted (licensed) | $536,182 | 0.02% |
| 50 | Zenith Insurance Company | 13269 | CA | Admitted (licensed) | $479,284 | 0.02% |
| 51 | Middlesex Insurance Company | 23434 | WI | Admitted (licensed) | $469,775 | 0.02% |
| 52 | State Farm General Insurance Company | 25151 | IL | Admitted (licensed) | $367,199 | 0.02% |
| 53 | First Liberty Insurance Corporation (The) | 33588 | IL | Admitted (licensed) | $362,833 | 0.02% |
| 54 | Pacific Indemnity Company | 20346 | DE | Admitted (licensed) | $357,218 | 0.02% |
| 55 | Vigilant Insurance Company | 20397 | NY | Admitted (licensed) | $347,871 | 0.02% |
| 56 | American National Property and Casualty Company | 28401 | NE | Admitted (licensed) | $294,684 | 0.01% |
| 57 | Atlantic Specialty Insurance Company | 27154 | NY | Admitted (licensed) | $289,783 | 0.01% |
| 58 | L M Insurance Corporation | 33600 | IL | Admitted (licensed) | $271,079 | 0.01% |
| 59 | Federated Service Insurance Company | 28304 | MN | Admitted (licensed) | $254,256 | 0.01% |
| 60 | Monterey Insurance Company | 23540 | CA | Admitted (licensed) | $248,826 | 0.01% |
| 61 | Liberty Mutual Insurance Company | 42404 | IL | Admitted (licensed) | $238,995 | 0.01% |
| 62 | Oregon Mutual Insurance Company | 14907 | OR | Admitted (licensed) | $224,697 | 0.01% |
| 63 | Century-National Insurance Company | 26905 | IL | Admitted (licensed) | $224,680 | 0.01% |
| 64 | Wesco Insurance Company | 25011 | DE | Admitted (licensed) | $198,472 | 0.01% |
| 65 | Nationwide General Insurance Company | 23760 | OH | Admitted (licensed) | $173,002 | 0.01% |
| 66 | Crestbrook Insurance Company | 18961 | OH | Admitted (licensed) | $146,867 | 0.01% |
| 67 | HORACE MANN PROPERTY \u0026 CASUALTY INSURANCE COMPANY | 22756 | IL | Admitted (licensed) | $116,080 | 0.01% |
| 68 | Arch Insurance (UK) Limited | 11150 | MO | Admitted (licensed) | $108,909 | 0.00% |
| 69 | Hartford Underwriters Insurance Company | 30104 | CT | Admitted (licensed) | $100,672 | 0.00% |
| 70 | Hartford Fire Insurance Company | 19682 | CT | Admitted (licensed) | $92,590 | 0.00% |
| 71 | United Casualty Insurance Company of America | 11142 | MO | Admitted (licensed) | $91,270 | 0.00% |
| 72 | Pennsylvania Lumbermen's Mutual Insurance Company | 14974 | PA | Admitted (licensed) | $79,696 | 0.00% |
| 73 | Eagle West Insurance Company | 12890 | CA | Admitted (licensed) | $78,667 | 0.00% |
| 74 | Hanover Insurance Company (The) | 22292 | NH | Admitted (licensed) | $77,083 | 0.00% |
| 75 | West American Insurance Company | 44393 | IN | Admitted (licensed) | $67,495 | 0.00% |
| 76 | Sompo America Insurance Company | 11126 | NY | Admitted (licensed) | $60,145 | 0.00% |
| 77 | EMPLOYERS MUTUAL CASUALTY COMPANY Employers Mutual Casualty Company) | 21415 | IA | Admitted (licensed) | $60,144 | 0.00% |
| 78 | Great American Insurance Company | 16691 | OH | Admitted (licensed) | $54,812 | 0.00% |
| 79 | American Casualty Company of Reading, Pennsylvania | 20427 | PA | Admitted (licensed) | $44,374 | 0.00% |
| 80 | New Hampshire Insurance Company | 23841 | IL | Admitted (licensed) | $42,301 | 0.00% |
| 81 | American Zurich Insurance Company | 40142 | IL | Admitted (licensed) | $41,584 | 0.00% |
| 82 | QBE Insurance (Europe) Limited | 39217 | PA | Admitted (licensed) | $40,678 | 0.00% |
| 83 | Security National Insurance Company | 19879 | DE | Admitted (licensed) | $36,062 | 0.00% |
| 84 | American Guarantee and Liability Insurance Company | 26247 | NY | Admitted (licensed) | $35,026 | 0.00% |
| 85 | Transportation Insurance Company | 20494 | IL | Admitted (licensed) | $33,313 | 0.00% |
| 86 | Ohio Security Insurance Company | 24082 | NH | Admitted (licensed) | $31,765 | 0.00% |
| 87 | Hanover American Insurance Company (The) | 36064 | NH | Admitted (licensed) | $31,090 | 0.00% |
| 88 | Accelerant National Insurance Company | 10220 | AR | Admitted (licensed) | $30,288 | 0.00% |
| 89 | Massachusetts Bay Insurance Company | 22306 | NH | Admitted (licensed) | $27,861 | 0.00% |
| 90 | Twin City Fire Insurance Company (The) | 29459 | IN | Admitted (licensed) | $25,592 | 0.00% |
| 91 | American Home Assurance Company | 19380 | NY | Admitted (licensed) | $25,059 | 0.00% |
| 92 | Obsidian Pacific Insurance Company | 26395 | DE | Admitted (licensed) | $22,646 | 0.00% |
| 93 | Great American Assurance Company | 26344 | OH | Admitted (licensed) | $21,752 | 0.00% |
| 94 | Stillwater Property and Casualty Insurance Company | 16578 | NY | Admitted (licensed) | $21,247 | 0.00% |
| 95 | Western Mutual Insurance Company | 13625 | CA | Admitted (licensed) | $21,206 | 0.00% |
| 96 | Grange Insurance Association | 22101 | WA | Admitted (licensed) | $17,785 | 0.00% |
| 97 | Verlan Fire Insurance Company | 10815 | NH | Admitted (licensed) | $15,895 | 0.00% |
| 98 | Sentry Insurance Company | 24988 | WI | Admitted (licensed) | $15,786 | 0.00% |
| 99 | Nationwide Insurance Company of America | 25453 | OH | Admitted (licensed) | $14,590 | 0.00% |
| 100 | Liberty Mutual Insurance Company | 23043 | MA | Admitted (licensed) | $14,524 | 0.00% |
| 101 | Ohio Casualty Insurance Company (The) | 24074 | NH | Admitted (licensed) | $11,019 | 0.00% |
| 102 | Hartford Casualty Insurance Company | 29424 | IN | Admitted (licensed) | $10,748 | 0.00% |
| 103 | Valley Forge Insurance Company | 20508 | PA | Admitted (licensed) | $9,804 | 0.00% |
| 104 | Citizens Insurance Company of America | 31534 | MI | Admitted (licensed) | $8,906 | 0.00% |
| 105 | SAMSUNG FIRE \u0026 MARINE INSURANCE CO., LTD. (U.S. BRANCH) | 38300 | NY | Admitted (licensed) | $8,603 | 0.00% |
| 106 | UNITED FIRE \u0026 CASUALTY COMPANY | 13021 | IA | Admitted (licensed) | $6,866 | 0.00% |
| 107 | California Mutual Insurance Company | 27480 | CA | Admitted (licensed) | $6,408 | 0.00% |
| 108 | United States Fire Insurance Company | 21113 | DE | Admitted (licensed) | $5,785 | 0.00% |
| 109 | Allmerica Financial Benefit Insurance Company | 41840 | MI | Admitted (licensed) | $4,263 | 0.00% |
| 110 | Fidelity and Guaranty Insurance Company | 35386 | IA | Admitted (licensed) | $3,966 | 0.00% |
| 111 | Ace Property and Casualty Insurance Company | 20699 | PA | Admitted (licensed) | $3,943 | 0.00% |
| 112 | Great American Alliance Insurance Company | 26832 | OH | Admitted (licensed) | $3,778 | 0.00% |
| 113 | Travelers Indemnity Company of Connecticut (The) | 25682 | CT | Admitted (licensed) | $3,756 | 0.00% |
| 114 | Pacific Employers Insurance Company | 22748 | PA | Admitted (licensed) | $3,649 | 0.00% |
| 115 | StarNet Insurance Company | 40045 | IA | Admitted (licensed) | $3,057 | 0.00% |
| 116 | National Fire Insurance Company of Hartford | 20478 | IL | Admitted (licensed) | $2,396 | 0.00% |
| 117 | Westport Insurance Corporation | 39845 | MO | Admitted (licensed) | $2,208 | 0.00% |
| 118 | Sutton National Insurance Company | 25798 | OK | Admitted (licensed) | $2,169 | 0.00% |
| 119 | Ace Fire Underwriters Insurance Company | 20702 | PA | Admitted (licensed) | $1,337 | 0.00% |
| 120 | Mitsui Sumitomo Insurance Company of America | 20362 | NY | Admitted (licensed) | $985 | 0.00% |
| 121 | AXIS Insurance Company | 37273 | IL | Admitted (licensed) | $856 | 0.00% |
| 122 | New York Marine and General Insurance Company | 16608 | NY | Admitted (licensed) | $694 | 0.00% |
| 123 | Financial Pacific Insurance Company | 31453 | CA | Admitted (licensed) | $536 | 0.00% |
| 124 | Granite State Insurance Company | 23809 | IL | Admitted (licensed) | $445 | 0.00% |
| 125 | Great American Insurance Company of New York | 22136 | NY | Admitted (licensed) | $38 | 0.00% |
| 126 | Chubb National Insurance Company | 10052 | IN | Admitted (licensed) | $15 | 0.00% |
| 127 | National Union Fire Insurance Company of Pittsburgh, Pennsylvania | 19445 | PA | Admitted (licensed) | $1 | 0.00% |
| 128 | Scottsdale Indemnity Company | 15580 | OH | Admitted (licensed) | $1 | 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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