| Business | Phone |
| Bayer Corp 100 Lee Ave, Winchester 22601 | (540) 723-8650 |
| Laboratory Corp Of America 1724 Amherst St, Winchester 22601 | (540) 678-5509 |
| Valley Health Occupational 607 E Jubal Early Dr, Winchester 22601 | (540) 536-2200 |
| Piedmont Medical Laboratory 333 W Cork St, Winchester 22601 | (540) 536-5500 |