HDR, an architecture, engineering and consulting giant headquartered in Omaha, Neb., is perhaps best known for its highway, transit and water projects. The firm employs more than 7,800 professionals in 185 locations worldwide.
Twelve of those offices are in the Rocky Mountain region, with 690 employees focused on the firm's transportation, power/energy, federal, water/wastewater, natural resources, health-care, science and technology markets.