| Business | Phone |
| Oil Chemical & Atomic Workers 6110 Ivy St, Commerce City 80022 | (303) 288-2712 |
| International Association-Mach 5621 Bowen Ct, Commerce City 80022 | (303) 289-7934 |
| Machinists International Assn 5621 Bowen Ct # 101, Commerce City 80022 | (303) 286-9300 |