| Safeco |
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| The Progressive Corporation (Principal Office Location: Mayfield Village, Ohio) |
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| Mercury General Corporation (Principal Office Location: Los Angeles, California) |
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| Blue Cross / Blue Shield |
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| Humana |
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| Great American Insurance Group |
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| Pekin Insurance |
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| Auto Owners Insurance |
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| Nationwide Insurance |
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| Dairyland Auto |
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| Mutual of Omaha |
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| Hastings Mutual |
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| Travelers |
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| West Bend |
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| Health Alliance |
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| The IMT Group |
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|