| Business | Phone |
| Bay City Education Assn 509 S Euclid Ave, Bay City 48706 | (989) 686-4940 |
| Bay County Labor Council 1300 W Thomas St, Bay City 48706 | (989) 684-5480 |
| Bricklayers Allied Craftsman 1300 W Thomas St, Bay City 48706 | (989) 671-3660 |
| Hospital Workers 1300 W Thomas St, Bay City 48706 | (989) 686-6496 |
| International-Electrical Wrkrs 1300 W Thomas St, Bay City 48706 | (989) 684-4510 |
| Laborers International Union 1963 Hatch Rd, Bay City 48708 | (989) 892-8060 |
| Postal Br 187 1000 Washington Ave, Bay City 48708 | (989) 892-1021 |
| Uaw 4427 Wilder Rd, Bay City 48706 | (989) 684-1435 |
| Uaw Local 362 1001 Woodside Ave, Bay City 48708 | (989) 894-0162 |
| Uaw Work Ctr 1001 Woodside Ave, Bay City 48708 | (989) 893-3891 |
| Uawgm Legal Svc Plan 4139 Wilder Rd, Bay City 48706 | (989) 684-3300 |
| United Steel Workers-America 1300 W Thomas St, Bay City 48706 | (989) 686-1347 |
| United Steelworkers Of America 503 N Euclid Ave 10, Bay City 48706 | (989) 667-0660 |
| Utility Workers Union-America 1705 1/2 3rd St, Bay City 48708 | (989) 892-5877 |