
P558 Aircraft Prototype Facility, U.S. Department of the Navy, in NAS Patuxent River, Maryland
A General Contractor Serving Washington, DC Metropolitan Area Since 1951
Clients
The John C. Grimberg Co. has performed work for numerous federal and private sector clients, to include the following:
- U. S. Army Corps of Engineers (USACE)
- NAVFAC Washington
- NAVFAC Mid-Atlantic
- Architect of the Capital (AOC)
- Drug Enforcement Administration (DEA)
- General Services Administration (GSA)
- National Institutes of Health (NIH)
- National Institute of Standards and Technology (NIST)
- Federal Bureau of Investigation (FBI)
- National Aeronautics and Space Administration (NASA)
- Fairfax County, VA Public Schools
- National Archives and Records Administration (NARA)
- Department of State
- General Accounting Office (GAO)
- National Imagery and Mapping Agency (NIMA)
- Department of Energy (DOE)
- Washington Suburban Sanitary Commission (WSSC)
- Metropolitan Washington Airports Authority
- National Gallery of Art
- State of Maryland
- City of Frederick, MD
- City of Manassas, VA
- Calvert County, MD
- The White House
- The Pentagon
- United States Naval Academy , Annapolis, MD
- University of Maryland Collage Park
- Howard University
- Gallaudet University
- Alexandria City, VA Public Schools
- Arlington, VA Public Schools
- Montgomery County, MD Public Schools
- Archdiocese of Washington DC
- Archdiocese of Baltimore, MD
- Classified Clients
- Private Religious Institutions and Schools
- Bonding Companies Under Contract Takeover Agreements