Marten Transport, Ltd. operates as a temperature-sensitive truckload carrier for shippers in the United States, Canada, and Mexico.

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.

The Dedicated segment offers customized transportation solutions for individual customers' requirements using temperature-controlled trailers, dry vans, and other specialized equipment.

The Intermodal segment transports customers' freight utilizing its refrigerated containers and temperature-controlled trailers on railroad flatcars for portions of trips, as well as using tractors and contracted carriers.

The Brokerage segment develops contractual relationships with and arranges for third-party carriers to transport freight for customers in temperature-controlled trailers and dry vans.

As of December 31, 2021, the company operated a fleet of 3,204 tractors, including 3,111 company-owned tractors and 93 tractors supplied by independent contractors.

Marten Transport, Ltd. was founded in 1946 and is headquartered in Mondovi, Wisconsin.