- Structural steel erection (157)
- Glass and glazing work (118)
- Excavation work (868)
- Wrecking and demolition work (104)
- Installing building equipment (75)
- Special trade contractors, nec (2696)
- Athletic and recreation facilities construction (29)
- Coating, caulking, and weather, water, and fireproofing (14)
- Service station equipment (5)
- Rigging and scaffolding (10)
- Exterior cleaning, including sandblasting (20)
- Home/office interiors finishing, furnishing and remodeling (55)
- Parking facility equipment and maintenance (1)
- Decontamination services (8)
- Building site preparation (27)
