Daimler Truck North America, a privately owned company and a Daimler Truck AG company, is headquartered in Portland, Oregon. Founded in 1942, the company operates with approximately 6,490 employees. It functions as a heavy-duty truck manufacturer and producer of medium-duty trucks and specialized commercial vehicles in North America, manufacturing, selling, and servicing commercial vehicle brands including Freightliner Trucks, Western Star Trucks, Thomas Built Buses, and Freightliner Custom Chassis. Through its affiliates, the company also provides heavy- and medium-duty diesel engines and other components. Its strategic partners in the North American commercial vehicles market include Daimler Truck Financial, TravelCenters of America, and Petro Truck Centers.