Load King
Truck TransportationSouth Dakota, United States51-200 Employees
Load King is a manufacturer of custom heavy-haul trailers based in Elk Point, South Dakota. It designs and builds trailers for construction and general transportation needs, focusing on engineering that delivers efficiency, safety, and reliable, well-built equipment. The company operates as part of Custom Truck One Source, which provides a broad, single-source suite of truck and heavy equipment solutions across North America, including sales, rentals, parts and service, customization, and remanufacturing. In October 2025, Load King introduced the Voyager AMX, an 11-foot aluminum service truck that pairs strength with reduced weight for greater efficiency, and the company showcased equipment at the Utility Expo 2025. This development reflects ongoing product introductions within Load King's portfolio.