Site Preparation Contractors

Commercial and Institutional Building Construction, Plumbing, Heating, and Air-Conditioning Contractors

Other Building Equipment Contractors, All Other Specialty Trade Contractors

Plumbing, Heating, and Air-Conditioning Contractors

Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, Structural Steel and Precast Concrete Contractors

Painting and Wall Covering Contractors, Flooring Contractors, Floor Covering Stores, Window Treatment Stores, Paint and Wallpaper Stores

Oilseed and Grain Combination Farming, Other Vegetable (except Potato) and Melon Farming, Soil Preparation, Planting, and Cultivating, Crop Harvesting, Primarily by Machine, Farm Management Services

All Other Specialty Trade Contractors

Poured Concrete Foundation and Structure Contractors

New Single-Family Housing Construction (except Operative Builders), Residential Remodelers, Industrial Building Construction, Commercial and Institutional Building Construction, Poured Concrete Foundation and Structure Contractors

All Other Specialty Trade Contractors

Power and Communication Line and Related Structures Construction, Electrical Contractors, Architectural Services, Engineering Services, Administrative Management and General Management Consulting Services

Plumbing, Heating, and Air-Conditioning Contractors, Paper (except Newsprint) Mills, Soap and Other Detergent Manufacturing

Industrial Building Construction, Commercial and Institutional Building Construction, All Other Specialty Trade Contractors, Metal Window and Door Manufacturing, Hardware Manufacturing

Other Building Equipment Contractors, Elevator and Moving Stairway Manufacturing, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Main

Commercial and Institutional Building Construction, Electrical Contractors, Plumbing, Heating, and Air-Conditioning Contractors, Engineering Services, Building Inspection Services

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

Residential Remodelers, Industrial Building Construction, Commercial and Institutional Building Construction, Poured Concrete Foundation and Structure Contractors

Other Building Equipment Contractors

Electrical Contractors