Here are the largest auto insurance companies in Montana, based on policy premiums in the state in 2018.
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Largest auto insurance companies in Montana
| Rank in Montana | Company | Market share % in Montana |
|---|---|---|
| 1 | State Farm | 22.04 |
| 2 | Progressive | 13.67 |
| 3 | Liberty Mutual | 12.41 |
| 4 | Farmers Insurance | 8.5 |
| 5 | USAA | 7.49 |
| 6 | Berkshire Hathaway Inc. | 5.9 |
| 7 | Mountain West Farm Bureau Mutual Insurance Co. | 5.45 |
| 8 | Allstate Corp. | 3.97 |
| 9 | Travelers | 3.9 |
| 10 | National General Holdings Corp. | 2.78 |
| 11 | The Hartford | 2.45 |
| 12 | Nationwide | 1.57 |
| 13 | CSAA Insurance Exchange | 1.36 |
| 14 | Farmers Alliance Cos. | 1.18 |
| 15 | American Family Insurance | 1.1 |
| 16 | Kemper | 0.69 |
| 17 | American National | 0.55 |
| 18 | MetLife | 0.54 |
| 19 | QBE | 0.49 |
| 20 | Markel | 0.48 |
| 21 | ACUITY A Mutual Insurance Co. | 0.45 |
| 22 | The Cincinnati Insurance Cos. | 0.39 |
| 23 | EMC Insurance | 0.39 |
| 24 | Chubb | 0.35 |
| 25 | Horace Mann | 0.31 |
| 26 | Mutual of Enumclaw | 0.22 |
| 27 | AIG | 0.21 |
| 28 | Global Indemnity | 0.2 |
| 29 | PURE | 0.17 |
| 30 | Munich Re | 0.17 |
| 31 | Hallmark | 0.17 |
| 32 | Amica | 0.1 |
| 33 | California Casualty | 0.1 |
| 34 | Root Insurance Co. | 0.08 |
| 35 | United Fire Group Inc. | 0.06 |
| 36 | Tokio Marine | 0.04 |
| 37 | Assurant | 0.04 |
| 38 | Tiptree Inc. | 0.03 |
| 39 | Sentry | 0.03 |
| 40 | Pharmacists Mutual | 0.01 |
| 41 | General Electric Co. | 0.01 |
| Source: S&P Global Market Intelligence, based on premiums written in 2018 for private passenger auto insurance. | ||