| Business | Phone |
| American Postal Workers Union 7512 Lemhi St, Boise 83709 | (208) 322-2798 |
| American Stewards Postal Workr 2201 S Cole Rd, Boise 83708 | (208) 323-4215 |
| United Food & Commercial Wrkrs 2220 Broadway Ave, Boise 83706 | (208) 367-9305 |
| Boise Central Trades & Labor 225 N 16th St, Boise 83702 | (208) 343-1561 |
| Service Employees 4696 Overland Rd 214, Boise 83705 | (208) 343-1038 |
| Sheet Metal Workers 5682 Albatros St, Boise 83705 | (208) 362-5303 |
| Carpenters Union 875 Mcgregor Ct 160, Boise 83705 | (208) 336-9243 |
| Painters Local 477 225 N 16th St, Boise 83702 | (208) 342-1026 |
| Mailhandlers Health Plan 1365 N Orchard St, Boise 83706 | (208) 322-8730 |
| Labors Local 155 225 N 16th St, Boise 83702 | (208) 331-0611 |
| Ibew 225 N 16th St 110, Boise 83702 | (208) 343-4861 |