| Business | Phone |
| Adac Plastics Inc 5920 Tahoe Dr Se, Grand Rapids 49546 | (616) 957-0311 |
| Alro Plastics 4150 Broadmoor Ave Se, Grand Rapids 49512 | (616) 656-2820 |
| Arvron Inc 4720 Clay Ave Sw, Grand Rapids 49548 | (616) 530-1888 |
| Axis Mold Works 3420 Broadmoor Ave Se 6, Grand Rapids 49512 | (616) 975-4160 |
| Mc Carthy Group 5633 52nd St Se, Grand Rapids 49512 | (616) 698-6030 |
| Cascade Engineering 5141 36th St Se, Grand Rapids 49512 | (616) 975-4800 |
| Concept Industries Inc 4950 Kraft Ave Se, Grand Rapids 49512 | (616) 554-9000 |
| J-Tec Products 4949 W Greenbrooke Dr Se, Grand Rapids 49512 | (616) 698-0690 |
| Laird Plastics 4320 Airwest Dr Se, Grand Rapids 49512 | (616) 698-9700 |
| Victor S Barnes Co 1927 Will Ave Nw, Grand Rapids 49504 | (616) 361-7351 |
| Wjg Enterprises Molding Co 2100 Nelson Ave Se, Grand Rapids 49507 | (616) 241-3903 |
| Plastics Plate Inc 3500 Raleigh Ave Se, Grand Rapids 49512 | (616) 455-5055 |
| Monroe Inc 4707 40th St Se, Grand Rapids 49512 | (616) 942-9820 |
| Hilco Technologies 4172 Danvers Ct Se, Grand Rapids 49512 | (616) 957-1081 |
| Lacks Enterprises Inc Mold 4260 Airwest Dr Se, Grand Rapids 49512 | (616) 698-6890 |