| Business | Phone |
| Ldj Electronics Inc 3831 Fernleigh Dr, Troy 48083 | (248) 528-2202 |
| Kds Controls Inc 307 Robbins Dr, Troy 48083 | (248) 588-5095 |
| Panasonic Electric Works Corp 1050 Wilshire Dr 110, Troy 48084 | (248) 649-0888 |
| Square D 1960 Research Dr 100, Troy 48083 | (248) 680-4444 |
| Schatz Usa Inc 330 E Maple Rd M, Troy 48083 | (248) 577-3750 |
| Compunetics Inc 3863 Rochester Rd, Troy 48083 | (248) 524-6376 |
| Debron Industrial Electronics 591 Executive Dr, Troy 48083 | (248) 588-7220 |
| Electrical Power Prod Sales 2611 Elliott Dr, Troy 48083 | (248) 585-4404 |
| Electrical Research Corp 1903 Barrett Dr, Troy 48084 | (248) 362-6135 |