| Travelers |
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| Encompass Insurance |
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| Safeco |
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| The Progressive Corporation (Principal Office Location: Mayfield Village, Ohio) |
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| Allied Insurance |
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| Harleysville Insurance |
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| Farmers Insurance |
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| Rockingham Group |
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| Cumberland Insurance Group |
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| Friends Cove Mutual |
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| Foremost Insurance Group (Principal Office Location: Caledonia, Michigan) |
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| AIC |
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| Farmers Fire Insurance Company |
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| National General Holdings Corp. (Principal Office Location: New York, New York) |
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| Philadelphia Insurance Companies |
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| 21st Century Insurance |
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| American Collectors Insurance |
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| Infinity Insurance |
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| Bristol West |
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| Aflac |
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| Blue Cross / Blue Shield |
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| First Nonprofit Insurance Company |
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| Hanover Fire & Casualty Insurance |
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| Hagerty Insurance |
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| Hartford Steam Boiler |
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| CNA Surety Corporation (Principal Office Location: Chicago, Illinois) |
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| National Flood Services |
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| Fortis |
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| Allianz Life Insurance Company of North America |
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| Dairyland Auto |
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| Dairyland Motorcycle |
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| Omni Insurance Group |
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| Viking Insurance |
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| Victoria Insurance |
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| Met Life Auto and Home |
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| Mercury General Corporation (Principal Office Location: Los Angeles, California) |
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| Main Street America Group |
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| United States Liability Insurance Group |
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| Assurant Health |
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| Burns & Wilcox |
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| Chartis Insurance |
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| Chubb |
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| Hiscox |
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| Hull & Company |
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| Lloyds |
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| Markel Insurance |
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| Mutual of Omaha |
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| RLI |
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| Titan Insurance |
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| Fireman's Fund |
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