Press release content from Business Wire. The AP news staff was not involved in its creation. A.M. Best Affirms Grange’s Rating and Upgrades Outlook to Positive; Rated for Innovation for the Second Consecutive Year May 6, 2021 GMT COLUMBUS, Ohio--(BUSINESS WIRE)--May 6, 2021-- Grange Insurance Company continues to be a financially strong and innovative company, according to A.M. Best, a global credit rating agency that specializes in the insurance industry. A.M. Best reaffirmed Grange’s financial strength rating (FSR) of “A” (Excellent) and upgraded its outlook to positive from stable for all its property and casualty companies and affiliates. The FSR is the most crucial component of A.M. Best’s rating because it indicates a carrier’s ability to pay its policyholders’ future claims.