performance on equity, assets, total revenue, growth in revenue, growth in surplus, and combined ratio over a five-year period. Valchoice named Grinnell Mutual a Best Car Insurance Company in six states: Minnesota, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin. Valchoice used data from state insurance commissioners, the National Association of Insurance Commissioners, AM Best Company, and S&P to determine their ratings. Related Companies Grinnell Compass — An auto insurance provider Grinnell Select — An auto insurance provider Grinnell Specialty Agency — Other lines of insurance References External links A.M. Best Rating Services analysis Iowa Insurance Division Examination Report Iowa Insurance Division Market Conduct Examination Report Financial services companies established in 1909 Companies based in Iowa Economy of the Western United States Insurance companies of the United States Mutual insurance companies of the United States Reinsurance companies 1909 establishments in the United States American companies established in 1909