| Business | Phone |
| Active Net 10640 Main St, Fairfax 22030 | (703) 352-7399 |
| Advanced Concepts Training Fairfax 22030 | (703) 246-9100 |
| Business Computer Solutions Fairfax 22030 | (703) 691-1751 |
| Logik Electronic Engineering 10431 Lee Hwy, Fairfax 22030 | (703) 359-6600 |
| Pccsi 9022 Hamilton Dr, Fairfax 22031 | (703) 934-1443 |
| Xprudent Corp 10560 Main St, Fairfax 22030 | (703) 273-9778 |
| Evolve Technologies 3057 Nutley St, Fairfax 22031 | (703) 426-7100 |