| Business | Phone |
| Ridgeview Industries 3093 Northridge Dr Nw, Grand Rapids 49544 | (616) 453-3651 |
| Ran Enterprises Inc 5062 Kendrick Ct Se, Grand Rapids 49512 | (616) 949-4522 |
| Riviera Tool Co 5460 Executive Pkwy Se, Grand Rapids 49512 | (616) 698-2100 |
| Bulman Products Inc 1650 Mcreynolds Ave Nw, Grand Rapids 49504 | (616) 363-4416 |
| Craft Steel Products Inc 1048 Ken O Sha Ind Park Dr Se, Grand Rapids 49508 | (616) 247-1090 |
| Dievelopment Corp 4327 Airlane Dr Se, Grand Rapids 49512 | (616) 475-3232 |
| Gill Industries Inc 5271 Plainfield Ave Ne, Grand Rapids 49525 | (616) 447-9618 |
| Haerter Stamping 3840 Model Ct Se, Grand Rapids 49512 | (616) 554-7052 |
| Its Stamping Inc 2756 Hillside Dr Nw, Grand Rapids 49544 | (616) 447-9990 |
| Pridgeon & Clay Inc 1111 Wallen Ave Sw, Grand Rapids 49507 | (616) 452-5391 |
| Proos Manufacturing Co 1037 Michigan St Ne, Grand Rapids 49503 | (616) 454-5622 |