- Structural steel erection (251)
- Glass and glazing work (336)
- Excavation work (3278)
- Wrecking and demolition work (241)
- Installing building equipment (211)
- Special trade contractors, nec (5505)
- Athletic and recreation facilities construction (57)
- Coating, caulking, and weather, water, and fireproofing (60)
- Service station equipment (3)
- Rigging and scaffolding (30)
- Exterior cleaning, including sandblasting (63)
- Home/office interiors finishing, furnishing and remodeling (254)
- Parking facility equipment and maintenance (7)
- Decontamination services (19)
- Building site preparation (19)
