| Business | Phone |
| Argus Corp 12540 Beech Daly Rd, Redford 48239 | (313) 937-2900 |
| Master Carbide Co 15060 Seminole, Redford 48239 | (313) 535-5454 |
| Ultimate Manufacturing 12125 Dixie, Redford 48239 | (313) 538-6212 |
| Z Technologies 26500 Capitol, Redford 48239 | (313) 937-0710 |
| Celano Precision Mfg 25928 W 7 Mile Rd, Redford 48240 | (313) 533-2039 |
| J-Gar Industries 26416 W 7 Mile Rd, Redford 48240 | (734) 878-6000 |