| Business | Phone |
| West Michigan Tool & Die 1007 Nickerson Ave, Benton Harbor 49022 | (269) 925-0900 |
| Precision Machining 206 Water St, Benton Harbor 49022 | (269) 925-5321 |
| Exact Tool & Engineering 117 Boughton St, Benton Harbor 49022 | (269) 925-5603 |
| Mach Mold & Die Co 360 Urbandale Ave, Benton Harbor 49022 | (269) 925-2044 |
| La Mantia Machine Co 395 E Main St, Benton Harbor 49022 | (269) 927-1886 |