- Structural steel erection (130)
- Glass and glazing work (154)
- Excavation work (978)
- Wrecking and demolition work (153)
- Installing building equipment (96)
- Special trade contractors, nec (4543)
- Athletic and recreation facilities construction (33)
- Coating, caulking, and weather, water, and fireproofing (38)
- Service station equipment (2)
- Rigging and scaffolding (11)
- Exterior cleaning, including sandblasting (21)
- Home/office interiors finishing, furnishing and remodeling (110)
- Parking facility equipment and maintenance (2)
- Decontamination services (17)
- Building site preparation (33)
