| Business | Phone |
| Afscme 4500 College Ave, Alton 62002 | (618) 462-9230 |
| American Federation-State Empl 1623 Washington Ave 201, Alton 62002 | (618) 462-1892 |
| United Steelworkers Of America 2821 E Broadway, Alton 62002 | (618) 465-4247 |
| Teamsters Local Union 830 E Broadway, Alton 62002 | (618) 462-7791 |
| Carpenters 506 Ridge St, Alton 62002 | (618) 465-6645 |
| Congress Of Independent Unions 303 Ridge St, Alton 62002 | (618) 462-2447 |
| Seafarer's International Union 325 Market St B, Alton 62002 | (618) 462-3456 |
| Nalc Branch 601 E 3rd St, Alton 62002 | (618) 729-4135 |
| International Electrical Wrkrs 4051 Humbert Rd, Alton 62002 | (618) 462-1627 |