HNTB Federal Services Corporation is a business unit of HNTB that was established for the service of the United States Federal Government and military. The company s professionals deliver services under federal contracting mechanisms and work seamlessly with clients tools, processes and professionals. Established in 1914, HNTB is among the largest engineering, architectural, planning and construction management firms in the country. The organization offers nationwide resources of more than 3,700 multidisciplinary professionals across more than 60 offices. It has worked on projects for the U.S. Army Corps of Engineers, Naval Facilities Engineering Command, Air Force Center for Engineering and the Environment, General Services Administration, Department of Homeland Security, Department of State, Federal Aviation Administration, U.S. Air National Guard, the Smithsonian Institution and the Pentagon. HNTB Federal Services Corporation maintains a location in Plano, Texas.