| Colorado Sheet Metal Workers Local 9 Pension Fund | Related tax-exempt org | To provide retirement benefits for eligible participants | CO | 840783596 |
| Sheet Metal Workers Local 9 JATC | Related tax-exempt org | Contributing employer | — | — |
| Sheet Metal Workers International Local 9 | Related tax-exempt org | Labor union / sponsoring organization | CO | 840318035 |
| Sheet Metal & AIR Conditioning Contractors Colorado Chapter | Related tax-exempt org | Employer association / sponsoring organization | CO | 840473302 |
| Colorado Building & Construction Trades Council | Related tax-exempt org | Contributing employer | — | — |
| 2H Mechanical LLC | Related taxable corporation/trust | Contributing employer | — | — |
| A P I INC | Related taxable corporation/trust | Contributing employer | — | — |
| AIR Right INC | Related taxable corporation/trust | Contributing employer | — | — |
| AIR Systems INC NB | Related taxable corporation/trust | Contributing employer | — | — |
| American Stainless Steel | Related taxable corporation/trust | Contributing employer | — | — |
| American Veteran Heating & AIR | Related taxable corporation/trust | Contributing employer | — | — |
| American Veteran Mechanical | Related taxable corporation/trust | Contributing employer | — | — |
| Anchored Kitchen Equipment | Related taxable corporation/trust | Contributing employer | — | — |
| Anything HVAC Commercial Services | Related taxable corporation/trust | Contributing employer | — | — |
| Apollo Sheet Metal INC | Related taxable corporation/trust | Contributing employer | — | — |
| Balance Technologies | Related taxable corporation/trust | Contributing employer | — | — |
| BELL Plumbing & Heating | Related taxable corporation/trust | Contributing employer | — | — |
| BIM Designs Incorporated | Related taxable corporation/trust | Contributing employer | — | — |
| Blue Phoenix Mechanical | Related taxable corporation/trust | Contributing employer | — | — |
| Brymax Construction Service INC | Related taxable corporation/trust | Contributing employer | — | — |
| C LOS Industries D2 LLC | Related taxable corporation/trust | Contributing employer | — | — |
| Certified Balancing & Commiss | Related taxable corporation/trust | Contributing employer | — | — |
| Chinook Test & Balance | Related taxable corporation/trust | Contributing employer | — | — |
| Classic Metals INC | Related taxable corporation/trust | Contributing employer | — | — |
| Colorado Sheet Metal | Related taxable corporation/trust | Contributing employer | — | — |