Michigan's top 20

Group Name
Accident Fund Insurance Co.
American International Group
Liberty Mutual Companies
Hartford Fire & Casualty Group
Auto Owners Insurance Group
The St. Paul Travelers Cos.
Frankenmuth Mutual Insurance Co.
Zurich/Maryland Insurance Cos.
Mich. Commercial Insurance Mutual
Amerisure Cos.
The Hanover Insurance Group
Hastings Mutual Insurance Co.
Michigan Insurance Co.
Mich. Farm Bureau Insurance Co.
Cincinnati Insurance Cos.
CNA Insurance Group
Chubb Group
Ace American Insurance Cos.
Indiana Insurance Group
American Compensation Insurance Co.
Totals

Total Estimated
Annual Premium
$207,660,478
$82,183,612
$69,088,470
$45,321,305
$44,227,222
$41,198,874
$36,137,514
$32,016,426
$30,256,679
$28,170,185
$28,105,857
$26,829,924
$24,880,364
$21,308,145
$21,072,215
$20,925,154
$20,326,428
$14,002,599
$12,343,356
$11,226,853
$735,008,048

Percentage of
Market Share
20.95%
8.27%
6.97%
4.56%
4.46%
4.16%
3.64%
3.21%
3.05%
2.84%
2.84%
2.71%
2.51%
2.15%
2.12%
2.11%
2.05%
1.41%
1.24%
1.13%
74.11%