All Other Specialty Trade Contractors

Apiculture, Support Activities for Forestry, Residential Remodelers, Highway, Street, and Bridge Construction, Poured Concrete Foundation and Structure Contractors

Electrical Contractors, Other Building Equipment Contractors, All Other Specialty Trade Contractors, Computer Systems Design Services, Security Systems Services (except Locksmiths)

Commercial and Institutional Building Construction, Electrical Contractors, Plumbing, Heating, and Air-Conditioning Contractors, Other Building Equipment Contractors, All Other Specialty Trade Contractors

Water and Sewer Line and Related Structures Construction, All Other Specialty Trade Contractors, Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipmen, Electric Housewares and Household Fan Manufacturing, Other Commercial and Industrial Machinery and Equipment Rental and Leasing

Industrial Building Construction, Commercial and Institutional Building Construction, Framing Contractors, Masonry Contractors, Electrical Contractors

Masonry Contractors, Roofing Contractors, Painting and Wall Covering Contractors, Finish Carpentry Contractors, Other Building Finishing Contractors

All Other Specialty Trade Contractors

Construction Sand and Gravel Mining, New Housing Operative Builders, Residential Remodelers, Highway, Street, and Bridge Construction, Site Preparation Contractors

All Other Specialty Trade Contractors

Power and Communication Line and Related Structures Construction, Electrical Contractors, Other Building Equipment Contractors, All Other Specialty Trade Contractors, Computer and Computer Peripheral Equipment and Software Merchant Wholesalers

Electrical Contractors, All Other Specialty Trade Contractors, Fabricated Structural Metal Manufacturing, Sheet Metal Work Manufacturing, Machine Shops

Electrical Contractors, Other Building Equipment Contractors, All Other Specialty Trade Contractors, Communication Equipment Repair and Maintenance

New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders, Residential Remodelers, Industrial Building Construction

Structural Steel and Precast Concrete Contractors, All Other Specialty Trade Contractors, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel, Rolled Steel Shape Manufacturing, Fabricated Structural Metal Manufacturing

Flooring Contractors, All Other Specialty Trade Contractors

Flooring Contractors, Tile and Terrazzo Contractors, Other Building Finishing Contractors, All Other Specialty Trade Contractors, Floor Covering Stores

Finish Carpentry Contractors, All Other Specialty Trade Contractors, Wood Kitchen Cabinet and Countertop Manufacturing, Nonupholstered Wood Household Furniture Manufacturing, Institutional Furniture Manufacturing

All Other Specialty Trade Contractors

Finfish Farming and Fish Hatcheries, Sewage Treatment Facilities, Industrial Building Construction, Commercial and Institutional Building Construction, Other Heavy and Civil Engineering Construction