| Business | Phone |
| Teamsters & Garage Employees 217 E Main St, Centralia 98531 | (360) 736-9979 |
| Carpenters Union 417 N Pearl St, Centralia 98531 | (360) 736-6762 |
| Operating Engineers 417 N Pearl St 2, Centralia 98531 | (360) 736-8028 |
| International Wood Workers 2211 Foron Rd, Centralia 98531 | (360) 736-5341 |