- Structural steel erection (90)
- Glass and glazing work (94)
- Excavation work (718)
- Wrecking and demolition work (68)
- Installing building equipment (43)
- Special trade contractors, nec (1921)
- Athletic and recreation facilities construction (19)
- Coating, caulking, and weather, water, and fireproofing (14)
- Service station equipment (1)
- Rigging and scaffolding (6)
- Exterior cleaning, including sandblasting (13)
- Home/office interiors finishing, furnishing and remodeling (36)
- Parking facility equipment and maintenance (6)
- Decontamination services (10)
- Building site preparation (3)
