May trucking? Yes, and in April, June, and the other months of the year, as well. Truckload carrier May Trucking hauls dry freight in about a dozen western states and transports refrigerated cargo throughout the US. The company operates a fleet of more than 900 tractors from terminals in Arizona, Colorado, California, Florida, Idaho, Oregon, and Utah. In addition to for-hire freight transportation, the company provides dedicated contract carriage, in which drivers and equipment are assigned to a customer long-term. May Trucking was founded in 1945; originally, the company's business consisted of hauling sacks of cement to construction sites.