National Interstate Insurance CompanyNational Interstate Insurance Company provides specialty commercial insurance for transportation businesses and related operators. Its offerings serve fleets and specialized carriers across areas such as ambulance, bus, towing, trucking, waste services, limousine, last-mile delivery, moving and storage, heavy haul, and other commercial transport segments. The company combines insurance coverage with claims support, loss-control services, telematics, and risk-financing solutions, working closely with producers, brokers, and commercial customers. National Interstate is part of the Great American Insurance Group family, which includes Vanliner, and operates in the insurance, transportation, and B2B sectors with a workforce of approximately 501–1,000 employees.