| Business | Phone |
| B K Machining 2691 Elizabethton Hwy, Johnson City 37601 | (423) 542-4515 |
| Underwood Machine Works 3407 Timberlake Rd, Johnson City 37601 | (423) 282-0321 |
| Bradley Machine & Welding Co 118 Water St, Johnson City 37601 | (423) 926-5042 |
| Ellis Computerized Machining 2247 E Fairview Ave, Johnson City 37601 | (423) 928-7539 |
| Hodges Machine Co 838 Austin Springs Rd, Johnson City 37601 | (423) 282-6931 |