| Business | Phone |
| Aircraft Mechanics Fraternal 10000 Wayne Rd 205, Romulus 48174 | (734) 229-0280 |
| Air Transport Lodge 9335 Middlebelt Rd, Romulus 48174 | (734) 946-5335 |
| American Postal Workers Union 30003 Van Born Rd, Romulus 48174 | (734) 728-4240 |
| Local Romulus Mfg 36880 Ecorse Rd, Romulus 48174 | (734) 728-7353 |
| Uaw-International Union 29841 Van Born Rd, Romulus 48174 | (734) 728-7600 |