- Awning installation
- Balcony, metal, installation
- Cathodic protection, installation
- Concrete form contractors
- Curtain wall, metal, installation
- Deck and grate (except roof), metal, installation
- Decorative steel and wrought iron work installation
- Epoxy application contractors
- Erection and dismantling, poured concrete form
- Falsework construction
- Fire escape installation
- Fireproofing buildings [2007]
- Forming contractor
- Forms for poured concrete, erecting and dismantling
- Metal furring contractors
- Ornamental metal work installation
- Shutter installation
- Stairway, metal, installation
- Store front, metal or metal frame, installation
- Urethane slabjacking contractors
- Urethane soil stabilization contractors
- Welding, on site, contractors
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