| Business | Phone |
| Gciu 2000 Walker St, Des Moines 50317 | (515) 266-7075 |
| Robert L Connett Directing Bus 2000 Walker St, Des Moines 50317 | (515) 266-4207 |
| Iupat District Council 81 5738 Nw 2nd St, Des Moines 50313 | (515) 289-0482 |
| Spoc 36 30th St, Des Moines 50312 | (515) 244-4115 |
| International Brotherhood 850 18th St, Des Moines 50314 | (515) 243-6535 |
| Iowa United Professionals 2905 1/2 Hubbell Ave, Des Moines 50317 | (515) 299-9839 |
| International Union-Elevator 2000 Walker St, Des Moines 50317 | (515) 262-0120 |
| International Union-Oper Engrs 4880 Hubbell Ave, Des Moines 50317 | (515) 265-7501 |
| Jatc Training Ctr 2501 Bell Ave, Des Moines 50321 | (515) 244-1346 |