Best Rating Company. Great is known for our stability, experience and strength, with rating of A Superior by Great Casualty Company is the nations secondleading provider of property and casualty insurance for the motor carrier industry. Founded in the company has nearly years of experience and offers risk management, loss control, underwriting and claims services exclusively to the trucking industry. Great is member of Old Republic International Group, one of the nations largest insurance holding companies..
Great is member of Old Republic International Group, one of the nations largest insurance holding companies.. Founded in the company has nearly years of experience and offers risk management, loss control, underwriting and claims services exclusively to the trucking industry. Best Rating Company. Great is known for our stability, experience and strength, with rating of A Superior by Great is headquartered in South Sioux City, NE with regional offices in Boise, ID Bloomington, IN Knoxville, TN and Arlington, TX.