Claystone Construction, 11840 Highway 52, Fort Lupton, CO 80621, US

Hensel Phelps Construction Company is an employee-owned general contractor and multibillion dollar construction company. Hensel Phelps employs more than 1,000 supervisory personnel and more than 1,600 craftspeople nationwide. The company builds a range of project types, including new construction and renovation of commercial, educational, high technology, industrial, leisure, medical, multiresidence, public and transportation facilities, as well as a variety of other project types including projects for the federal, state and local governments throughout the continental United States. Hensel Phelps has its corporate office in Greeley, Colo.