| Business | Phone |
| Germane Systems 3680 Centerview Dr 100, Chantilly 20151 | (703) 502-8890 |
| United Metal Detectors 13810 Braddock Rd B, Chantilly 20151 | (703) 631-0202 |
| Westwood Computer 14121 Parke Long Ct 200, Chantilly 20151 | (703) 916-8600 |
| Isoftech Inc Chantilly 20151 | (703) 327-1631 |