| Name | Relationship | Activity | State | EIN |
|---|---|---|---|---|
| OE Norcal Surveyors Jaatt | Related tax-exempt org | Training | — | 942289979 |
| OE Health and Welfare Trust Fund | Related tax-exempt org | Benefits | — | 942784001 |
| Pension Trust Fund of OPER ENG | Related tax-exempt org | Benefits | — | 946090764 |
| OE PRE-Apprentice Jaatf | Related tax-exempt org | Training | — | 942289979 |
| OE Assistance Recovery Program | Related tax-exempt org | Benefits | — | 943042622 |
| OE Business Development Trust Fund | Related tax-exempt org | Business Dev | — | 946676286 |
| OE Contract Admin Trust Fund | Related tax-exempt org | Contract Admn | — | 943026407 |
| OE Heavy and Highway Trust Fund | Related tax-exempt org | Constr Fund | — | 270080889 |
| OE Industry Stabilization Trust Fund | Related tax-exempt org | Ind Stabil | — | 952036255 |
| OE Market Preservation TF | Related tax-exempt org | Mrkt Preserv | — | 946599237 |
| Pensioned OE H&W TF | Related tax-exempt org | Benefits | — | 946096327 |
| Pensioned OE Public and Misc EE H&W Tf | Related tax-exempt org | Benefits | — | 942567865 |
| OE Vacation Holiday and SICK | Related tax-exempt org | Benefits | — | 816631261 |
| Union of Operating Engineers Local No 3 | Related tax-exempt org | Labor Union | — | 940577785 |
| OE Paajaatf UTAH | Related tax-exempt org | Training | — | 941640988 |
| Crane Industry LaborMgmt Coop TF | Related tax-exempt org | Labor Coop | — | 900342641 |
| OPER ENG Jaatf Hawaii | Related tax-exempt org | Training | — | 941659158 |
| OPER ENG Jaatf Nevada | Related tax-exempt org | Training | — | 946104798 |
| OPER ENG Annuity Plan California | Related tax-exempt org | Benefits | — | 946090764 |
| OPER ENG H&W Trust Fund Hawaii | Related tax-exempt org | Benefits | — | 946182984 |
| OPER ENG Industry Stabilization TF - HI | Related tax-exempt org | Industry STAB | — | 990262008 |
| OPER ENG Health & Welfare TF Nevada | Related tax-exempt org | Benefits | — | 886031750 |
| OPER ENG Annuity Plan Hawaii | Related tax-exempt org | Benefits | — | 942959994 |