- Structural steel erection (179)
- Glass and glazing work (310)
- Excavation work (3028)
- Wrecking and demolition work (210)
- Installing building equipment (196)
- Special trade contractors, nec (6077)
- Athletic and recreation facilities construction (65)
- Coating, caulking, and weather, water, and fireproofing (63)
- Service station equipment (4)
- Rigging and scaffolding (20)
- Exterior cleaning, including sandblasting (46)
- Home/office interiors finishing, furnishing and remodeling (137)
- Parking facility equipment and maintenance (4)
- Decontamination services (19)
- Building site preparation (18)
