| Business | Phone |
| Tdh Co 45813 Evening Way, Sterling 20164 | (703) 430-1879 |
| Dulles Micro 1319 Shepard Dr 201, Sterling 20164 | (703) 450-5001 |
| Softech Worldwide 47378 Westwood Pl, Sterling 20165 | (703) 404-1300 |
| Oss Management Inc 47253 Middle Bluff Pl, Sterling 20165 | (703) 450-5026 |
| Jaspin Interactive 22375 Broderick Dr, Sterling 20166 | (703) 421-7800 |