| Business | Phone |
| Northrop Grumman Mission Sys 4501 Ford Ave 401, Alexandria 22302 | (703) 578-8990 |
| Loch Harbour Group Inc 6121 Lincolnia Rd 401, Alexandria 22312 | (703) 642-2380 |
| Hampshire Research Alexandria 22314 | (703) 683-6695 |
| Regulatory Science Press 2203 Traies Ct, Alexandria 22306 | (703) 765-3546 |
| Polus Technologies Inc 8513 Bound Brook Ln, Alexandria 22309 | (703) 799-5831 |