Directory · California · Personal auto
Who writes personal auto 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).
118 companies wrote personal auto in California in 2025, $48.40B in direct premium. State Farm Mutual Automobile Insurance Company led with 13.8%; the top five hold 48%.
By Sam Alishahi, independent insurance broker · All lines in California
Personal auto · California
The companies
| # | Company | NAIC | Home state | Status here | Premium | Share |
|---|---|---|---|---|---|---|
| 1 | State Farm Mutual Automobile Insurance Company | 25178 | IL | Admitted (licensed) | $6.69B | 13.83% |
| 2 | Interinsurance Exchange of the Automobile Club | 15598 | CA | Admitted (licensed) | $4.89B | 10.11% |
| 3 | GEICO General Insurance Company | 35882 | NE | Admitted (licensed) | $4.75B | 9.82% |
| 4 | CSAA Insurance Exchange | 15539 | CA | Admitted (licensed) | $3.89B | 8.03% |
| 5 | Allstate Northbrook Indemnity Company | 36455 | IL | Admitted (licensed) | $3.11B | 6.42% |
| 6 | Mercury Insurance Company | 27553 | CA | Admitted (licensed) | $2.69B | 5.56% |
| 7 | Farmers Insurance Exchange | 21652 | CA | Admitted (licensed) | $2.18B | 4.50% |
| 8 | Infinity Insurance Company | 22268 | IN | Admitted (licensed) | $2.08B | 4.30% |
| 9 | United Financial Casualty Company | 11770 | OH | Admitted (licensed) | $1.84B | 3.80% |
| 10 | Drive Insurance Company | 27804 | OH | Admitted (licensed) | $945.8M | 1.95% |
| 11 | Safeco Insurance Company of America | 24740 | NH | Admitted (licensed) | $897.0M | 1.85% |
| 12 | Aspire General Insurance Company | 15290 | CA | Admitted (licensed) | $874.2M | 1.81% |
| 13 | American Family Connect Property and Casualty Insurance Company | 29068 | WI | Admitted (licensed) | $860.5M | 1.78% |
| 14 | Integon National Insurance Company | 29742 | IL | Admitted (licensed) | $851.7M | 1.76% |
| 15 | USAA Casualty Insurance Company | 25968 | TX | Admitted (licensed) | $794.3M | 1.64% |
| 16 | Wawanesa General Insurance Company | 10683 | CA | Admitted (licensed) | $791.6M | 1.64% |
| 17 | Progressive Select Insurance Company | 10192 | OH | Admitted (licensed) | $749.1M | 1.55% |
| 18 | Tesla Insurance Company | 24813 | CA | Admitted (licensed) | $725.0M | 1.50% |
| 19 | USAA General Indemnity Company | 18600 | TX | Admitted (licensed) | $596.8M | 1.23% |
| 20 | United Services Automobile Association, USAA Reciprocal, Attorney-in-fact | 25941 | TX | Admitted (licensed) | $552.6M | 1.14% |
| 21 | Garrison Property and Casualty Insurance Company | 21253 | TX | Admitted (licensed) | $543.1M | 1.12% |
| 22 | Coast National Insurance Company | 25089 | CA | Admitted (licensed) | $504.8M | 1.04% |
| 23 | Travelers Commercial Insurance Company | 36137 | CT | Admitted (licensed) | $488.7M | 1.01% |
| 24 | GEICO Protection Insurance Company | 17511 | NE | Admitted (licensed) | $468.7M | 0.97% |
| 25 | 21st Century Casualty Company | 36404 | CA | Admitted (licensed) | $455.0M | 0.94% |
| 26 | Mid-Century Insurance Company | 21687 | CA | Admitted (licensed) | $423.0M | 0.87% |
| 27 | Nationwide Insurance Company of America | 25453 | OH | Admitted (licensed) | $421.4M | 0.87% |
| 28 | Viking Insurance Company of Wisconsin | 13137 | WI | Admitted (licensed) | $348.9M | 0.72% |
| 29 | California Automobile Insurance Company | 38342 | CA | Admitted (licensed) | $331.1M | 0.68% |
| 30 | State National Insurance Company, Inc. | 12831 | TX | Admitted (licensed) | $321.6M | 0.66% |
| 31 | Integon Preferred Insurance Company | 31488 | IL | Admitted (licensed) | $289.7M | 0.60% |
| 32 | California Casualty Indemnity Exchange, The | 20117 | CA | Admitted (licensed) | $233.4M | 0.48% |
| 33 | Loya Casualty Insurance Company | 12589 | CA | Admitted (licensed) | $222.4M | 0.46% |
| 34 | Hartford Underwriters Insurance Company | 30104 | CT | Admitted (licensed) | $198.7M | 0.41% |
| 35 | Amica Mutual Insurance Company, The | 19976 | RI | Admitted (licensed) | $151.0M | 0.31% |
| 36 | Essentia Insurance Company | 37915 | MO | Admitted (licensed) | $126.1M | 0.26% |
| 37 | Anchor General Insurance Company | 40010 | CA | Admitted (licensed) | $122.1M | 0.25% |
| 38 | Permanent General Assurance Corporation | 37648 | TN | Admitted (licensed) | $119.2M | 0.25% |
| 39 | Encompass Insurance Company | 10358 | IL | Admitted (licensed) | $115.5M | 0.24% |
| 40 | Root Insurance Company | 10974 | OH | Admitted (licensed) | $105.6M | 0.22% |
| 41 | Federal Insurance Company | 20281 | IN | Admitted (licensed) | $91.0M | 0.19% |
| 42 | Progressive Direct Insurance Company | 16322 | OH | Admitted (licensed) | $90.7M | 0.19% |
| 43 | California Capital Insurance Company | 13544 | CA | Admitted (licensed) | $83.6M | 0.17% |
| 44 | Incline National Insurance Company | 19269 | CA | Admitted (licensed) | $81.6M | 0.17% |
| 45 | American National Property and Casualty Company | 28401 | NE | Admitted (licensed) | $70.1M | 0.14% |
| 46 | Horace Mann Insurance Company | 22578 | IL | Admitted (licensed) | $64.7M | 0.13% |
| 47 | Foremost Insurance Company Grand Rapids, Michigan | 11185 | MI | Admitted (licensed) | $63.3M | 0.13% |
| 48 | Metromile Insurance Company | 16187 | NY | Admitted (licensed) | $61.0M | 0.13% |
| 49 | Seaview Insurance Company | 10004 | CA | Admitted (licensed) | $60.3M | 0.12% |
| 50 | Knightbrook Insurance Company | 13722 | DE | Admitted (licensed) | $56.0M | 0.12% |
| 51 | Trumbull Insurance Company | 27120 | CT | Admitted (licensed) | $56.0M | 0.12% |
| 52 | CSAA General Insurance Company | 37770 | IN | Admitted (licensed) | $53.7M | 0.11% |
| 53 | Privilege Underwriters Reciprocal Exchange, PURE Risk Mgt, Atty-in-Fact | 12873 | FL | Admitted (licensed) | $53.0M | 0.11% |
| 54 | Progressive Casualty Insurance Company | 24260 | OH | Admitted (licensed) | $45.2M | 0.09% |
| 55 | GEICO Indemnity Company | 22055 | NE | Admitted (licensed) | $40.3M | 0.08% |
| 56 | Grange Insurance Association | 22101 | WA | Admitted (licensed) | $38.9M | 0.08% |
| 57 | National General Insurance Company | 23728 | IL | Admitted (licensed) | $36.8M | 0.08% |
| 58 | Commerce West Insurance Company | 13161 | CA | Admitted (licensed) | $35.2M | 0.07% |
| 59 | Orion Indemnity Company | 13250 | CA | Admitted (licensed) | $35.0M | 0.07% |
| 60 | Travelers Property Casualty Insurance Company | 36161 | CT | Admitted (licensed) | $34.7M | 0.07% |
| 61 | Safeway Insurance Company | 12521 | IL | Admitted (licensed) | $34.7M | 0.07% |
| 62 | American States Preferred Insurance Company | 37214 | IN | Admitted (licensed) | $33.6M | 0.07% |
| 63 | Cincinnati Insurance Company (The) | 10677 | OH | Admitted (licensed) | $30.0M | 0.06% |
| 64 | AIG Property Casualty Company | 19402 | IL | Admitted (licensed) | $28.0M | 0.06% |
| 65 | Hartford Casualty Insurance Company | 29424 | IN | Admitted (licensed) | $27.8M | 0.06% |
| 66 | National General Assurance Company | 42447 | IL | Admitted (licensed) | $27.8M | 0.06% |
| 67 | Bankers Standard Insurance Company | 18279 | PA | Admitted (licensed) | $27.8M | 0.06% |
| 68 | Allstate Insurance Company | 19232 | IL | Admitted (licensed) | $27.1M | 0.06% |
| 69 | Nations Insurance Company Dba Nations Insurance Company of Florida Dba Nations Insurance Company of Florida | 13127 | CA | Admitted (licensed) | $26.5M | 0.05% |
| 70 | Response Indemnity Company of California | 10970 | CA | Admitted (licensed) | $24.0M | 0.05% |
| 71 | First Acceptance Insurance Company, Inc. | 10336 | TX | Admitted (licensed) | $22.2M | 0.05% |
| 72 | HORACE MANN PROPERTY \u0026 CASUALTY INSURANCE COMPANY | 22756 | IL | Admitted (licensed) | $20.0M | 0.04% |
| 73 | Accredited Surety and Casualty Company, Inc. | 26379 | FL | Admitted (licensed) | $19.6M | 0.04% |
| 74 | MAPFRE Insurance Company | 23876 | NJ | Admitted (licensed) | $15.4M | 0.03% |
| 75 | Qualitas Insurance Company | 14133 | CA | Admitted (licensed) | $13.3M | 0.03% |
| 76 | Stillwater Insurance Company | 25180 | CA | Admitted (licensed) | $10.9M | 0.02% |
| 77 | American Alternative Insurance Corporation | 19720 | DE | Admitted (licensed) | $10.7M | 0.02% |
| 78 | Philadelphia Indemnity Insurance Company | 18058 | PA | Admitted (licensed) | $10.5M | 0.02% |
| 79 | 21st Century Centennial Insurance Company | 34789 | PA | Admitted (licensed) | $8.8M | 0.02% |
| 80 | Sterling Casualty Insurance Company | 12878 | CA | Admitted (licensed) | $8.3M | 0.02% |
| 81 | Crestbrook Insurance Company | 18961 | OH | Admitted (licensed) | $8.2M | 0.02% |
| 82 | Safeco Insurance Company of Illinois | 39012 | IL | Admitted (licensed) | $7.9M | 0.02% |
| 83 | American Modern Property and Casualty Insurance Company | 42722 | OH | Admitted (licensed) | $7.7M | 0.02% |
| 84 | Nationwide Mutual Insurance Company | 23787 | OH | Admitted (licensed) | $7.7M | 0.02% |
| 85 | National Specialty Insurance Company | 22608 | TX | Admitted (licensed) | $6.8M | 0.01% |
| 86 | Spinnaker Insurance Company | 24376 | IL | Admitted (licensed) | $5.8M | 0.01% |
| 87 | MIC General Insurance Corporation | 38660 | IL | Admitted (licensed) | $5.1M | 0.01% |
| 88 | Pacific Star Insurance Company | 29793 | WI | Admitted (licensed) | $4.3M | 0.01% |
| 89 | Eagle West Insurance Company | 12890 | CA | Admitted (licensed) | $3.2M | 0.01% |
| 90 | Trisura Insurance Company | 22225 | OK | Admitted (licensed) | $2.9M | 0.01% |
| 91 | Trans Pacific Insurance Company | 41238 | NY | Admitted (licensed) | $2.4M | 0.00% |
| 92 | Century-National Insurance Company | 26905 | IL | Admitted (licensed) | $1.8M | 0.00% |
| 93 | Pacific Specialty Insurance Company | 37850 | CA | Admitted (licensed) | $1.6M | 0.00% |
| 94 | First National Insurance Company of America | 24724 | NH | Admitted (licensed) | $1.1M | 0.00% |
| 95 | Foremost Property and Casualty Insurance Company | 11800 | MI | Admitted (licensed) | $988,675 | 0.00% |
| 96 | National Unity Insurance Company | 19119 | TX | Admitted (licensed) | $951,160 | 0.00% |
| 97 | American Bankers Insurance Company of Florida | 10111 | FL | Admitted (licensed) | $838,347 | 0.00% |
| 98 | Equity Insurance Company | 28746 | TX | Admitted (licensed) | $618,090 | 0.00% |
| 99 | Markel American Insurance Company | 28932 | VA | Admitted (licensed) | $596,713 | 0.00% |
| 100 | XL Specialty Insurance Company | 37885 | DE | Admitted (licensed) | $585,777 | 0.00% |
| 101 | Twin City Fire Insurance Company (The) | 29459 | IN | Admitted (licensed) | $492,304 | 0.00% |
| 102 | Aegis Security Insurance Company | 33898 | CA | Admitted (licensed) | $431,179 | 0.00% |
| 103 | Everest National Insurance Company | 10120 | DE | Admitted (licensed) | $427,358 | 0.00% |
| 104 | Ocean Harbor Casualty Insurance Company | 12360 | FL | Admitted (licensed) | $416,062 | 0.00% |
| 105 | RiverStone International Insurance, Inc. | 21261 | MA | Admitted (licensed) | $299,817 | 0.00% |
| 106 | QBE Insurance (Europe) Limited | 39217 | PA | Admitted (licensed) | $226,317 | 0.00% |
| 107 | Oregon Mutual Insurance Company | 14907 | OR | Admitted (licensed) | $67,005 | 0.00% |
| 108 | STARR INDEMNITY \u0026 LIABILITY COMPANY | 38318 | TX | Admitted (licensed) | $46,502 | 0.00% |
| 109 | DB Insurance Company, Ltd. (US Branch) | 12502 | HI | Admitted (licensed) | $43,029 | 0.00% |
| 110 | Midvale Indemnity Company | 27138 | WI | Admitted (licensed) | $41,607 | 0.00% |
| 111 | Pharmacists Mutual Insurance Company | 13714 | IA | Admitted (licensed) | $38,985 | 0.00% |
| 112 | MS Transverse Insurance Company | 21075 | TX | Admitted (licensed) | $29,665 | 0.00% |
| 113 | GEICO Casualty Company | 41491 | NE | Admitted (licensed) | $18,154 | 0.00% |
| 114 | American Modern Home Insurance Company | 23469 | OH | Admitted (licensed) | $7,437 | 0.00% |
| 115 | Incline Casualty Company | 11090 | TX | Admitted (licensed) | $6,802 | 0.00% |
| 116 | Government Employees Insurance Company | 22063 | NE | Admitted (licensed) | $6,539 | 0.00% |
| 117 | Nevada General Insurance Company | 10007 | NV | Admitted (licensed) | $5,990 | 0.00% |
| 118 | American Family Home Insurance Company | 23450 | FL | Admitted (licensed) | $304 | 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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