| Business | Phone |
| Wilson-Brinker Assoc Inc 1417 S Burdick St, Kalamazoo 49001 | (269) 343-2567 |
| Softech Engineering 4610 Hidden Shore Dr, Kalamazoo 49048 | (269) 385-4799 |
| Controlnet Llc 5688 E Ml Ave, Kalamazoo 49048 | (269) 373-5555 |
| R S Controls 3030 S 9th St 2k, Kalamazoo 49009 | (269) 375-2525 |
| Havel Brothers 8233 Neptune Dr, Kalamazoo 49009 | (269) 344-9646 |