- Plumbing, heating, air-conditioning (13)
- Painting and paper hanging (17)
- Electrical work (12)
- Masonry and other stonework (4)
- Plastering, drywall, and insulation (3)
- Terrazzo, tile, marble and mosaic work (3)
- Carpentry work (7)
- Floor laying and floor work, nec (1)
- Roofing, siding, and sheetmetal work (5)
- Concrete work (6)
- Structural steel erection (1)
- Excavation work (8)
- Special trade contractors, nec (13)
