| Business | Phone |
| Eit Precision Machining 45000 Underwood Ln, Sterling 20166 | (703) 904-8123 |
| Fairfax Precision Mfr Inc 44819 Acacia Ln 160, Sterling 20166 | (703) 450-6406 |
| Rbm Machine 44964 Underwood Ln A, Sterling 20166 | (703) 435-3276 |
| J B Precision Machining Inc 1319 Shepard Dr B, Sterling 20164 | (703) 433-2010 |
| K-Form, Inc. 9a Acacia Ln, Sterling 20166 | (703) 450-4401 |