The Motorists Insurance Group, through its group operating companies, offers personal and commercial property/casualty products, primarily in the Midwest but in other areas of the US as well. Its main subsidiary, Motorists Mutual Insurance, sells car, home, and business insurance; Ohio is its largest market. Motorists is affiliated with several other regional insurers through management contracts and reinsurance arrangements. Among its affiliates are business insurer American Hardware; Wilson Mutual, which operates in Wisconsin and Minnesota; and Iowa Mutual Insurance, which operates in Illinois, Iowa, and Nebraska.