Knight-Swift Transportation Holdings Inc., formerly Swift Transportation Company, provides truckload services in North America. The Company also provides rail intermodal and non-asset based freight brokerage and logistics management services. The Company provides its services across United States, Mexico and Canada using its dry van, refrigerated, flatbed and specialized trailers, and intermodal containers. As of September 10, 2017, the Company had a fleet of approximately 23,000 tractors and 77,000 trailers. It operates through its Knight Transportation, Swift Transportation, and Barr-Nunn branded subsidiaries.