| Business | Phone |
| United Brotherhood-Carpenters 101 S Fairfax Ave, Sioux Falls 57103 | (605) 357-8284 |
| United Food & Commercial Wrkrs 101 S Fairfax Ave, Sioux Falls 57103 | (605) 338-3811 |
| Teamters Union Local 749 105 N Conklin Ave, Sioux Falls 57103 | (605) 336-7499 |
| South Dakota State Federation 738 S 1st Ave, Sioux Falls 57104 | (605) 339-7284 |
| Sioux Falls Labor Temple 101 S Fairfax Ave, Sioux Falls 57103 | (605) 338-3091 |
| Plumbers & Steamfitters 612 E 4th St, Sioux Falls 57103 | (605) 334-8351 |
| Ibew 3509 S Norton Ave, Sioux Falls 57105 | (605) 336-0370 |
| International Union 101 S Fairfax Ave, Sioux Falls 57103 | (605) 336-1952 |
| Mailhandlers Union 408 S 2nd Ave, Sioux Falls 57104 | (605) 335-5562 |
| Labor Temple 101 S Fairfax Ave, Sioux Falls 57103 | (605) 335-0097 |
| Laborers International Union Sioux Falls 57105 | (605) 335-6674 |