| Business | Phone |
| Thompson Machine Works 115 N Fairmont Ave, Morristown 37814 | (423) 587-3050 |
| Rpn Inc 908 Cherokee Dr, Morristown 37814 | (423) 586-8663 |
| Mason Machine Shop 1015 Jaybird Rd, Morristown 37814 | (423) 586-2555 |
| Mason Machinings 1830 Wagon Wheel Dr, Morristown 37814 | (423) 585-5510 |
| Mason Machinings 3579 Elwood Dr, Morristown 37814 | (423) 581-3919 |