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Michigan's top 20
The top 20 commercial insurers that write workers’ compensation policies in Michigan collect an estimated annual premium of more than $735 million and combine for roughly 75 percent of that market.
Here are those top 20, ranked by the estimated annual premium and overall market share in Michigan.
Source: Michigan Office of Financial and Insurance Regulation, “The State of Competition in the Workers’ Compensation Insurance Market in the State of Michigan,” May 2009