| District Eight Regional Organizing Committee | Related tax-exempt org | Benefits | OH | 481289600 |
| Appalachian Pipeline Contr LLP | Related partnership | Construction | TN | 770594803 |
| Abatement & Environmental SER | Related taxable corporation/trust | Construction | KY | 611384615 |
| ABEL Construction CO INC | Related taxable corporation/trust | Construction | KY | 610674234 |
| Access Limited Construction | Related taxable corporation/trust | Construction | CA | 462724404 |
| ACE Pipeline | Related taxable corporation/trust | Construction | WV | 454834309 |
| Aecon Industrial Management | Related taxable corporation/trust | Construction | KY | 311269399 |
| Allard Excavation LLC | Related taxable corporation/trust | Construction | OH | 454040618 |
| American Contracting & Service | Related taxable corporation/trust | Construction | IN | 351618530 |
| American Refractory CO | Related taxable corporation/trust | Construction | WV | 300474269 |
| Apacheskyway USA | Related taxable corporation/trust | Construction | DE | 364814424 |
| Apcom Power INC | Related taxable corporation/trust | Construction | DE | 061310571 |
| APEX Building Company LLC | Related taxable corporation/trust | Construction | TN | 263197584 |
| APEX Pipeline Services INC | Related taxable corporation/trust | Construction | WV | 204082705 |
| Appalachian Mechanical | Related taxable corporation/trust | Construction | OH | 830684024 |
| ARC Construction CO INC | Related taxable corporation/trust | Construction | IN | 351164830 |
| Aristeo Construction CO | Related taxable corporation/trust | Construction | MI | 382168471 |
| Associated Pipeline CONT INC | Related taxable corporation/trust | Construction | DE | 741250343 |
| AZCO INC | Related taxable corporation/trust | Construction | WI | 390789900 |
| B & B Wrecking Excavating INC | Related taxable corporation/trust | Construction | OH | 340877664 |
| Babcock & Wilcox Construction | Related taxable corporation/trust | Construction | DE | 721035422 |
| Badgett Construction LLC | Related taxable corporation/trust | Construction | KY | 611276211 |
| Baker Concrete Construction In | Related taxable corporation/trust | Construction | OH | 310817881 |
| Baker's Construction Services INC | Related taxable corporation/trust | Construction | TN | 621292868 |
| Barton Malow CO | Related taxable corporation/trust | Construction | MI | 381327761 |