| Business | Phone |
| Brooks Range Contract Svc Inc 700 Army Navy Dr, Arlington 22202 | (703) 413-2025 |
| Centra Technology Inc 4121 Wilson Blvd 301, Arlington 22203 | (703) 276-7618 |
| Quantum Research Intl 1100 Wilson Blvd 1450, Arlington 22209 | (703) 413-3200 |
| Orion International Technology 2000 15th St N 507, Arlington 22201 | (703) 276-1600 |
| Mandex Inc 4001 9th St N 106, Arlington 22203 | (703) 243-1160 |
| Metrica Inc 1611 N Kent St 900, Arlington 22209 | (703) 525-0045 |