| Business | Phone |
| Digital Geographic Mapping 113 Imboden Dr, Winchester 22603 | (540) 535-7450 |
| Greenway Engineering 151 Windy Hill Ln, Winchester 22602 | (540) 662-4185 |
| Patton Martin & Assoc 163 Creekside Ln, Winchester 22602 | (540) 723-0545 |
| Alpha Corp 609 Cedar Creek Grade B, Winchester 22601 | (540) 723-0704 |
| Bowman Consulting Group Ltd 124 E Cork St, Winchester 22601 | (540) 722-2343 |