| Business | Phone |
| Austin Machine Shop 241 Mayberry St, Sparta 38583 | (931) 837-8744 |
| Rollin's Machine & Tool 168 Plateau Ln, Sparta 38583 | (931) 935-3766 |
| Randolph's Custom Machine Shop 2041 Roberts Matthews Hwy, Sparta 38583 | (931) 739-4444 |
| Holland Fabrication 5264 Smithville Hwy, Sparta 38583 | (931) 761-2070 |