| Business | Phone |
| Local 1564 Atu 551 E 11 Mile Rd, Madison Heights 48071 | (248) 542-2288 |
| Uaw Local 711 13 Mile Rd, Madison Heights 48071 | (248) 645-2400 |
| Ufcw Local 876 876 Horace Brown Dr, Madison Heights 48071 | (248) 585-9671 |
| Plasterers Local 1154 E Lincoln Ave, Madison Heights 48071 | (248) 591-6700 |
| Plumbers Local 98 555 Horace Brown Dr, Madison Heights 48071 | (248) 307-2440 |
| Office & Professional Employee 28091 Dequindre Rd, Madison Heights 48071 | (248) 543-1150 |
| National Assn-Letter Carriers 28806 John R Rd, Madison Heights 48071 | (248) 541-0060 |
| Cement Masons Union Local 514 1154 E Lincoln Ave, Madison Heights 48071 | (248) 548-0800 |