| Business | Phone |
| Jensen Tool & Die 1261 Holton Rd, Muskegon 49445 | (231) 744-1078 |
| Miller Engineering Ltd 2724 Riordan St, Muskegon 49444 | (231) 733-2194 |
| Beckstrom Mold Technologies 771 Access Hwy, Muskegon 49442 | (231) 728-3666 |
| K C Design Svc Inc 2437 7th St, Muskegon 49444 | (231) 733-0411 |