| Business | Phone |
| Boyer Machine & Tool Co 1080 S Gladstone Ave, Columbus 47201 | (812) 379-9581 |
| Touchdown Machine Shop 432 S Mapleton St, Columbus 47201 | (812) 378-0983 |
| Turner's Machining Specialties 820 Repp Dr, Columbus 47201 | (812) 372-9472 |
| Cole Technology Inc 4050 N Long Rd, Columbus 47203 | (812) 343-3452 |
| Creative Tool & Machining Inc 4010 Middle Rd, Columbus 47203 | (812) 378-3562 |
| Crouch Machine & Tool Inc 1726 23rd St, Columbus 47201 | (812) 378-2196 |
| Quality Machine & Tool 1201 Michigan St, Columbus 47201 | (812) 379-2660 |
| Southern Machine Co 330 S Mapleton St, Columbus 47201 | (812) 379-9221 |
| Sterling Industries 4015 N Long Rd, Columbus 47203 | (812) 376-6560 |
| Exact Engineering & Machining 4580 Ray Boll Blvd, Columbus 47203 | (812) 378-4757 |
| Gary Chamber's Lawn & Power 7120 E 600 S, Columbus 47201 | (812) 579-9029 |
| Hoosier Tool & Die Co 3450 Scott Dr, Columbus 47201 | (812) 376-8286 |
| Hts Hardin Tooling Svc 4920 N Warren Dr # 180, Columbus 47203 | (812) 376-1055 |
| Indiana Custom Machining 5945 S 400 W, Columbus 47201 | (812) 342-3334 |
| Indiana Custom Machining 982 S Marr Rd, Columbus 47201 | (812) 379-1889 |
| N C Tool & Machine 1132 Ruddick Ave, Columbus 47201 | (812) 372-7224 |
| Noblitt Fabricating Inc 4735 N Indianapolis Rd, Columbus 47203 | (812) 372-9969 |