| AEGIS Insurance Company |
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| American Modern Insurance Group |
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| Berkshire Hathaway Homestate Companies |
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| Bristol West |
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| BTIS |
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| Chubb |
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| Drive by Progressive |
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| Foremost Insurance Group (Principal Office Location: Caledonia, Michigan) |
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| Hagerty Insurance |
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| Hippo Insurance |
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| Hiscox |
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| Lloyds |
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| MAIPF |
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| Markel Insurance |
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| Michigan Basic Property Insurance Association |
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| National General Holdings Corp. (Principal Office Location: New York, New York) |
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| The Progressive Corporation (Principal Office Location: Mayfield Village, Ohio) |
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| State Auto Insurance |
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| Stillwater Insurance Group (Principal Office Location: Jacksonville, Florida) |
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| Suncoast General Insurance Agency |
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| Tapco Underwriters, Inc. (Principal Office Location: Brea, California) |
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| Travelers |
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| United States Liability Insurance Group |
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