| Cincinnati Insurance Company, the | 0.02 | 1 | $44,745,229 |
| Great West Casualty Company | 0.03 | 1 | $39,769,661 |
| Frankenmuth Insurance Company | 0.04 | 9 | $211,008,387 |
| Auto Owners Insurance Company | 0.05 | 62 | $1,246,227,192 |
| Fremont Insurance Company | 0.05 | 8 | $167,410,959 |
| Zurich American Insurance Company | 0.05 | 2 | $43,612,095 |
| Farm Bureau General Insurance Company of Michigan | 0.06 | 27 | $433,139,574 |
| Liberty Surplus Insurance Corporation | 0.06 | 3 | $54,096,865 |
| Citizens Insurance Company of the Midwest | 0.07 | 45 | $637,169,183 |
| Pioneer State Mutual Insurance Company | 0.07 | 11 | $165,903,164 |
| Michigan Automobile Insurance Placement Facility | 0.07 | 1 | $13,919,510 |
| Arch Insurance Company | 0.07 | 1 | $13,891,159 |
| Meemic Insurance Company | 0.08 | 22 | $285,349,139 |
| Auto Club Group Insurance Company | 0.08 | 14 | $169,187,982 |
| Hastings Insurance Company | 0.08 | 5 | $62,776,686 |
| Federated Mutual Insurance Company | 0.08 | 1 | $13,005,807 |
| Westfield Insurance Company | 0.08 | 1 | $12,140,674 |
| USAA Casualty Insurance Company | 0.09 | 18 | $194,576,467 |
| Allstate Property and Casualty Insurance Company | 0.09 | 9 | $95,092,753 |
| United Services Automobile Association | 0.09 | 7 | $80,975,221 |
| Michigan Insurance Company | 0.09 | 5 | $54,268,570 |
| Travelers Property Casualty Company of America | 0.09 | 1 | $11,410,140 |
| Grange Insurance Company of Michigan | 0.10 | 1 | $9,840,521 |
| State Farm Mutual Automobile Insurance Company | 0.11 | 214 | $1,877,061,290 |
| Sentry Insurance Company | 0.11 | 1 | $9,186,175 |
| Memberselect Insurance Company | 0.12 | 93 | $801,902,114 |
| Philadelphia Indemnity Insurance Company | 0.12 | 2 | $16,437,717 |
| Truck Insurance Exchange | 0.14 | 3 | $21,775,541 |
| American Family Connect Property and Casualty Insurance Company | 0.14 | 2 | $14,672,245 |
| Progressive Michigan Insurance Company | 0.15 | 122 | $840,507,196 |
| Allstate Fire and Casualty Insurance Company | 0.15 | 57 | $392,839,825 |
| Safeco Insurance Company of Illinois | 0.15 | 7 | $47,353,190 |
| Essentia Insurance Company | 0.16 | 5 | $31,751,122 |
| Horace Mann Property & Casualty Insurance Company | 0.16 | 2 | $12,704,223 |
| Protective Insurance Company | 0.16 | 1 | $6,229,430 |
| Property and Casualty Insurance Company of Hartford | 0.18 | 2 | $11,011,794 |
| Hudson Insurance Company | 0.18 | 1 | $5,558,045 |
| Secura Supreme Insurance Company | 0.18 | 1 | $5,469,891 |
| Progressive Marathon Insurance Company | 0.20 | 284 | $1,386,435,466 |
| American Economy Insurance Company | 0.20 | 25 | $123,196,958 |
| Trumbull Insurance Company | 0.21 | 11 | $52,623,003 |
| Farm Bureau Mutual Insurance Company of Michigan | 0.22 | 17 | $76,728,592 |
| Titan Insurance Company | 0.22 | 10 | $44,842,369 |
| Amica Mutual Insurance Company | 0.22 | 3 | $13,585,080 |
| American Select Insurance Company | 0.23 | 8 | $34,099,850 |
| Amerisure Mutual Insurance Company | 0.24 | 2 | $8,282,199 |
| USA Underwriters Insurance Company | 0.25 | 9 | $35,530,072 |
| ACE American Insurance Company | 0.26 | 2 | $7,671,304 |
| Farmers Insurance Exchange | 0.27 | 24 | $87,459,748 |
| LM General Insurance Company | 0.29 | 19 | $65,768,699 |
| Amerisure Insurance Company | 0.29 | 2 | $6,885,735 |
| Lancer Insurance Company | 0.31 | 1 | $3,259,141 |
| GEICO Indemnity Company | 0.33 | 21 | $62,687,460 |
| GEICO General Insurance Company | 0.33 | 3 | $8,985,417 |
| LM Insurance Corporation | 0.34 | 2 | $5,801,046 |
| Farmers Group Property and Casualty Insurance Company | 0.35 | 13 | $36,840,226 |
| Travelers Indemnity Company of America, the | 0.35 | 2 | $5,780,295 |
| National Liability & Fire Insurance Company | 0.35 | 1 | $2,822,086 |
| Ohio Security Insurance Company | 0.35 | 1 | $2,817,500 |
| MIC General Insurance Corporation | 0.36 | 4 | $11,263,601 |
| Integon National Insurance Company | 0.39 | 6 | $15,515,021 |
| Hartford Accident and Indemnity Company | 0.39 | 1 | $2,575,736 |
| Bristol West Preferred Insurance Company | 0.42 | 20 | $47,510,884 |
| Liberty Mutual Personal Insurance Company | 0.44 | 62 | $140,337,041 |
| National General Insurance Company | 0.45 | 12 | $26,543,192 |
| State Auto Property & Casualty Insurance Company | 0.45 | 8 | $17,934,439 |
| Esurance Property and Casualty Insurance Company | 0.47 | 46 | $98,475,564 |
| Liberty Mutual Fire Insurance Company | 0.48 | 7 | $14,459,532 |
| Farmers Direct Property and Casualty Insurance Company | 0.52 | 1 | $1,919,250 |
| Allstate Insurance Company | 0.55 | 13 | $23,776,291 |
| Valley Forge Insurance Company | 0.57 | 2 | $3,520,739 |
| Farmers Property and Casualty Insurance Company | 0.57 | 1 | $1,763,798 |
| Government Employees Insurance Company | 0.61 | 25 | $41,281,152 |
| Allied Property and Casualty Insurance Company | 0.61 | 1 | $1,639,947 |
| Fcci Insurance Company | 0.61 | 1 | $1,639,226 |
| Ohio Farmers Insurance Company | 0.62 | 1 | $1,625,682 |
| United States Fire Insurance Company | 0.68 | 2 | $2,926,646 |
| Great Divide Insurance Company | 0.76 | 1 | $1,317,133 |
| Occidental Fire & Casualty Company of North Carolina | 0.80 | 1 | $1,242,835 |
| Falls Lake National Insurance Company | 0.91 | 2 | $2,200,773 |
| Everest National Insurance Company | 1.03 | 2 | $1,949,562 |
| Auto Club Insurance Association | 1.15 | 21 | $18,326,222 |
| Citizens United Reciprocal Exchange | 1.76 | 150 | $85,091,304 |
| State Farm Fire and Casualty Company | 2.05 | 4 | $1,950,041 |
| Home-Owners Insurance Company | 2.71 | 25 | $9,213,785 |