| Carpenter Employers Contract Admin | Related tax-exempt org | Industry labor relations | CA | 903019160 |
| Construction Employers Association | Related tax-exempt org | Industry labor relations | CA | 680090150 |
| Association of Construction Employers | Related tax-exempt org | Construction contractor representation | CA | 943220494 |
| Laborers Admin Market Preservation | Related tax-exempt org | Industry labor relations | CA | 943030527 |
| Construction Employers Contract Admin | Related tax-exempt org | Collective bargaining agreements | CA | 943225123 |
| Builders Industry Promotion Trust | Related tax-exempt org | Industry labor relations | CA | 943156951 |
| California Builders Advancement Program | Related tax-exempt org | To promote union construction in calif | CA | 311561775 |
| Association of Environmental Contractors | Related tax-exempt org | Environment related issues | CA | 300154426 |
| Assoc of Environmental Contractors IPT | Related tax-exempt org | Implementation of labor agreements | CA | 300167951 |
| Carpenters Work Preservation Trust | Related tax-exempt org | Industry labor relations | CA | 943018622 |
| CEA Cement Masons Contract Admin | Related tax-exempt org | Carry out provisions of agreement | CA | 300937858 |
| So Calif Environ Contractors IPT | Related tax-exempt org | Carry out collective bargaining agreemen | CA | 300914931 |
| Laborers Building Industry Stabilization | Related tax-exempt org | Industry labor relations | CA | 686057668 |