| Pension Plan for Local Union 527 of Operative Plasters and Cement Masons | Related tax-exempt org | Provides retirement benefits | MO | 510179270 |
| Cement Masons Local 527 Vacation and Administrative Trust | Related tax-exempt org | Provides vacation benefits | MO | 436205255 |
| Cement Masons Local 527 Trust Fund | Related tax-exempt org | Provides health and welfare benefits | MO | 430650799 |
| Compton Contr Harold | Related taxable corporation/trust | Contributing employer | MO | — |
| Amcon Municipal Concrete | Related taxable corporation/trust | Contributing employer | MO | — |
| American Civil | Related taxable corporation/trust | Contributing employer | MO | — |
| APC Industrial Flooring INC | Related taxable corporation/trust | Contributing employer | MO | — |
| Associated GEN Contrs | Related taxable corporation/trust | Contributing employer | MO | — |
| Aubuchon | Related taxable corporation/trust | Contributing employer | MA | — |
| B & P Const Company INC | Related taxable corporation/trust | Contributing employer | MO | — |
| Bales Concrete LLC | Related taxable corporation/trust | Contributing employer | MO | — |
| Banze Flatwork | Related taxable corporation/trust | Contributing employer | MO | — |
| Blue Field Floors | Related taxable corporation/trust | Contributing employer | GA | — |
| Breakout Concrete | Related taxable corporation/trust | Contributing employer | MO | — |
| Brimo | Related taxable corporation/trust | Contributing employer | MO | — |
| Bruce Trucking & | Related taxable corporation/trust | Contributing employer | MO | — |
| Buchheit Concrete INC | Related taxable corporation/trust | Contributing employer | MO | — |
| Buchheit Const Kevin | Related taxable corporation/trust | Contributing employer | MO | — |
| Builders BLOC | Related taxable corporation/trust | Contributing employer | MO | — |
| Byrne & Jones Construction | Related taxable corporation/trust | Contributing employer | MO | — |
| CECO Concrete | Related taxable corporation/trust | Contributing employer | MO | — |
| Cement Masons Local #90 | Related taxable corporation/trust | Contributing employer | IL | — |
| Cement Masons Local 11 | Related taxable corporation/trust | Contributing employer | MO | — |
| Cement Masons Local 40 | Related taxable corporation/trust | Contributing employer | MO | — |
| Cement Masons Local 518 | Related taxable corporation/trust | Contributing employer | MO | — |