Electric Bulk Power Transmission and Control, Electric Power Distribution, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders

Water Supply and Irrigation Systems, Residential Remodelers, Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers, Sporting and Recreational Goods and Supplies Merchant Wholesalers, Toy and Hobby Goods and Supplies Merchant Wholesalers

Plumbing, Heating, and Air-Conditioning Contractors

Power and Communication Line and Related Structures Construction, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers, Other Electronic Parts and Equipment Merchant Wholesalers, Other Commercial and Industrial Machinery and Equipment Rental and Leasing

Electrical Contractors

Electrical Contractors, Plumbing, Heating, and Air-Conditioning Contractors

Painting and Wall Covering Contractors

Electrical Contractors

Electrical Contractors, Audio and Video Equipment Manufacturing, Other Communication and Energy Wire Manufacturing, Noncurrent-Carrying Wiring Device Manufacturing, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

Other Building Equipment Contractors

Other Electric Power Generation, Electrical Contractors, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers, Industrial Machinery and Equipment Merchant Wholesalers, Industrial Supplies Merchant Wholesalers

Other Heavy and Civil Engineering Construction

Glass and Glazing Contractors

New Multifamily Housing Construction (except Operative Builders), Commercial and Institutional Building Construction

Water and Sewer Line and Related Structures Construction, Power and Communication Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, Site Preparation Contractors

Plumbing, Heating, and Air-Conditioning Contractors

New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), Residential Remodelers, Electrical Contractors

New Single-Family Housing Construction (except Operative Builders)

Water Supply and Irrigation Systems, Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction

Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction, Power and Communication Line and Related Structures Construction

Painting and Wall Covering Contractors

Flooring Contractors

Plumbing, Heating, and Air-Conditioning Contractors

Residential Remodelers, Electrical Contractors, All Other Specialty Trade Contractors

Residential Remodelers, Water and Sewer Line and Related Structures Construction, Power and Communication Line and Related Structures Construction, Electrical Contractors