Motorists Mutual is a member of Motorists Insurance Group. Headquartered in Columbus, Ohio, Motorists Insurance Group is a re ... gional insurance carrier that includes 11 property and casualty, life insurance and insurance brokerage companies. The group provides insurance solutions through 14,000 agents in 24 states across the Midwest, Northeast and South. Motorists Insurance Group strives to be the most trusted and responsive carrier in the independent agency system, and is rated A (Excellent) by A.M. Best, the leading provider of insurer ratings. read more