Cook Roy D Transportation, Golden Valley, AZ 86413, US

IWX Motor Freight is a national trucking company headquartered in Springfield, Mo. It specializes in the transportation of produce and dry freight items from the West Coast to the Midwest. The company utilizes a fleet of Freightliner tractors and 53-foot XL Tall reefer trailers and also provides online freight tracking services. Its trailers are equipped with satellite communication devices, IWX Thermo Tracs, which allow tracking of the positions of vehicles and information on the operation of refrigeration units for temperature-controlled loads. IWX Motor Freight also organizes blood donation camps and maintains regional terminals in Kingman, Ariz., Fort Worth, Texas and Edinburgh, Ind.