| Business | Phone |
| Prs Mfg Co 3745 Dykstra Dr Nw, Grand Rapids 49544 | (616) 784-4409 |
| Benteler Automotive Corp 3721 Hagen Dr Se, Grand Rapids 49548 | (616) 245-4607 |
| Suspa Inc 3970 Roger Chaffee Memorial Dr, Grand Rapids 49548 | (616) 241-4200 |
| Royce Rolls Ringer Co 16 Riverview Ter Ne, Grand Rapids 49505 | (616) 361-9266 |