| Aberdeen, Maryland |
| Albuquerque, New Mexico |
| Alexandria, Virginia |
| Annapolis Junction, Maryland |
| Arlington, Virginia |
| Astana City, Kazakhstan |
| Atlanta, Georgia |
| Baku, Azerbaijan |
| Baltimore, Maryland |
| Boston, Massachusetts |
| Chantilly, Virginia |
| Charleston, South Carolina |
| Charlottesville, Virginia |
| Chicago Illinois |
| Clearfield, Utah |
| Colorado Springs, Colorado |
| Dayton, Ohio |
| Denver, Colorado |
| Detroit, Michigan |
| Dulles, Virginia |
| Durham, North Carolina |
| Eatontown, New Jersey |
| Falls Church, Virginia |
| Frederick, Maryland |
| Hanover, Maryland |
| Honolulu, Hawaii |
| Houston, Texas |
| Huntsville, Alabama |
| Indianapolis, Indiana |
| Irvine, California |
| Johnstown, Pennsylvania |
| Kansas City, Missouri |
| Las Vegas, Nevada |
| Leavenworth, Kansas |
| Lexington Park, Maryland |
| Linthicum, Maryland |
| Los Angeles, California |
| McLean, Virginia (Corporate Headquarters) |
| Melbourne, Florida |
| Montgomery, Alabama |
| Moscow, Russia |
| New Orleans, Louisiana |
| Newark, New Jersey |
| Newport, Rhode Island |
| Norfolk, Virginia |
| O'Fallon, Illinois |
| Oklahoma City, Oklahoma |
| Omaha, Nebraska |
| Omaha, Nebraska |
| Orlando, Florida |
| Pensacola, Florida |
| Philadelphia, Pennsylvania |
| Pittsburgh, Pennsylvania |
| Radcliffe, Kentucky |
| Rock Island, Illinois |
| Rockville, Maryland |
| Rome, New York |
| Salt Lake City, Utah |
| San Antonio, Texas |
| San Diego, California |
| San Francisco, California |
| Santa Maria, California |
| Seattle, Washington |
| Sierra Vista, Arizona |
| Stafford, Virginia |
| Tampa, Florida |
| Tbilisi ,Georgia |
| Urbandale, Iowa |
| Warner Robins, Georgia |
| Washington, DC |
