| Business | Phone |
| Eyt 14100 Park Meadow Dr, Chantilly 20151 | (703) 817-1400 |
| Germane Systems 3680 Centerview Dr, Chantilly 20151 | (703) 480-1075 |
| P C Quick 4157 Pleasant Meadow Ct, Chantilly 20151 | (703) 961-1177 |
| Systems Research & Development 25417 Lemon Tree Pl, Chantilly 20152 | (703) 327-3750 |