The Common name used throughout industry to describe isPs is third-party and fourth-party service providers. In a general sense ISPs are commonly classified as being either asset- or nonasset-based. the distinction being that assest-based (third-party) firms own and operate transportation equipment and warehousing buildings. In contrast. nonasset service (fourth-party) firms specialize in providing comprehensive information services that facilitate supply chain arrangements. Such fourth party service provider arrange services, often integrating third-party asset operators on behalf of their customers.