- Structural steel erection (176)
- Glass and glazing work (169)
- Excavation work (1625)
- Wrecking and demolition work (154)
- Installing building equipment (118)
- Special trade contractors, nec (5496)
- Athletic and recreation facilities construction (58)
- Coating, caulking, and weather, water, and fireproofing (48)
- Service station equipment (5)
- Rigging and scaffolding (24)
- Exterior cleaning, including sandblasting (47)
- Home/office interiors finishing, furnishing and remodeling (101)
- Parking facility equipment and maintenance (2)
- Decontamination services (16)
- Building site preparation (28)
