| Name | Address, Zip |
| National Active And Retired Federal Employees Association | 1317 18th St, 48708-7344 |
| International Union United Auto Aerospace & Agricultural Wrkrs | 4427 Wilder Rd, 48706-2207 |
| Utility Workers Union Of America Afl-cio | 2118 Avalon Cir, 48708-7621 |
| United Steelworkers Of America | 503 N Euclid Ave Ste 10, 48706-2965 |
| American Federation Of State County & Municipal Employees | 505 N Erie St, 48706-4409 |
| American Federation Of Teachers | 4155 Monitor Rd, 48706-9211 |
| American Federation Of State County & Municipal Employees | 1300 Garfield Ave, 48708-7834 |
| American Federation Of Labor & Congress Of Industrial Orgs | 1300 W Thomas St, 48706-3238 |
| Bay City Electrical Joint Apprenticeship & Training Trust | 1206 W Thomas St, 48706-3236 |
| International Association Of Fire Fighters | 1000 W North Union St, 48706-3527 |
| National Association Of Letter Carriers | Po Box 363, 48707-0363 |
| Bridgeport Education Association | 1483 S Valley Center Dr, 48706-9754 |
| Bangor Township Education Association | 508 S Alp St, 48706-4275 |
| Delta College Faculty Association Mea-nea | 1483 S Valley Center Dr, 48706-9754 |
| International Association Of Fire Fighters | Po Box 272, 48707-0272 |
| Bay City Educational Support Professionals | 1483 S Valley Center Dr, 48706-9754 |
| International Brotherhood Of Electrical Workers | 1300 W Thomas St, 48706-3238 |
| Building & Construction Of Northern Michigan & Vicinity | 1300 W Thomas St, 48706-3238 |
| Unite Here | 1300 W Thomas Street No Ste D, 48706-3238 |
| United Steelworkers | 503 N Euclid Avenue, 48706-2967 |
| United Steelworkers | 503 North Euclid Avenue, 48706-2967 |
| United Steelworkers | 503 N Euclid Avenue, 48706-2967 |
| United Steelworkers | 509 Center Ave Ste 9, 48708-5974 |
| United Steelworkers | 405 Mosher St, 48706-3757 |
| United Steelworkers | 1601 Wilson St, 48708-8570 |
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