Marten Transport, Ltd. operates as a temperature-sensitive truckload carrier for shippers in the United States, Mexico, and Canada. It operates through four segments: Truckload, Dedicated, Intermodal, and Brokerage. The Truckload segment transports food and other consumer packaged goods that require a temperature-controlled or insulated environment, as well as dry freight; and regional short-haul and medium-to-long-haul full-load transportation services.