| Business | Phone |
| Bill's Hartford Machine Shop 443 Pine St, Hartford 53027 | (262) 673-5290 |
| Componet Engineering Inc 1610 Independence Ave, Hartford 53027 | (262) 673-0511 |
| Daves Job Shop 865 Cleveland Ave, Hartford 53027 | (262) 673-4321 |
| E K Machine Inc 1028 Western Dr, Hartford 53027 | (262) 670-0071 |
| E K Machine Inc Warehouse 1353 Wacker Dr, Hartford 53027 | (262) 670-6894 |
| Franken Machining 1090 W Sumner St, Hartford 53027 | (262) 673-9424 |
| Gerken Specialty Machining Llc 1026 Western Dr, Hartford 53027 | (262) 670-9434 |
| Slinger Manufacturing Co Inc 180 Grant St, Hartford 53027 | (262) 670-6494 |
| Hechimovich Machining Inc 925 Airport Dr, Hartford 53027 | (262) 673-7311 |
| Regall Machining Svc 935 W State St, Hartford 53027 | (262) 673-2679 |
| Lmi Manufacturing W352 State Road 33, Hartford 53027 | (262) 629-5527 |