- Plumbing, heating, air-conditioning (20)
- Painting and paper hanging (5)
- Electrical work (16)
- Masonry and other stonework (5)
- Plastering, drywall, and insulation (3)
- Terrazzo, tile, marble and mosaic work (5)
- Carpentry work (6)
- Floor laying and floor work, nec (1)
- Roofing, siding, and sheetmetal work (6)
- Concrete work (1)
- Excavation work (1)
- Special trade contractors, nec (18)
