IMPEX is a transportation management company that manages the United Shippers Alliance, a nonprofit shippers association.

All transportation activities provided to shipper-members of the United Shippers Alliance through service contracts and in other ways by the USA, a multi-industry, rate-negotiating shippers association serving shippers nationwide from Columbus, Ohio, are the responsibility of IMPEX Logistics, a transportation management company that serves this shippers association and its members under the terms of a management contract.