| Business | Phone |
| Terad Fabricating Inc 26314 Olympic Ave, Carroll 51401 | (712) 792-6443 |
| D & S Machine & Tool Inc 2047 Industrial Park Rd, Carroll 51401 | (712) 792-5512 |
| Iowa Screw Machine Products 19206 Kittyhawk Ave, Carroll 51401 | (712) 792-8375 |
| Murray's Welding & Machine 322 N Us Highway 71, Carroll 51401 | (712) 792-5170 |