Water Supply and Irrigation Systems, 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

Industrial Building Construction, Commercial and Institutional Building Construction, Oil and Gas Pipeline and Related Structures Construction, Power and Communication Line and Related Structures Construction, Highway, Street, and Bridge Construction

Support Activities for Oil and Gas Operations, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders, Residential Remodelers

Power and Communication Line and Related Structures Construction, Other Building Equipment Contractors, Hardware Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Other Communications Equipment Manufacturing

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

Power and Communication Line and Related Structures Construction, Plumbing, Heating, and Air-Conditioning Contractors, Other Scientific and Technical Consulting Services, Facilities Support Services, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Main

Other Electric Power Generation, Power and Communication Line and Related Structures Construction, Plumbing, Heating, and Air-Conditioning Contractors, Residential Electric Lighting Fixture Manufacturing, Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing

Other Electric Power Generation, Power and Communication Line and Related Structures Construction, Roofing Contractors, Electrical Contractors, Plumbing, Heating, and Air-Conditioning Contractors

Other Electric Power Generation, Power and Communication Line and Related Structures Construction, Roofing Contractors, Residential Electric Lighting Fixture Manufacturing

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

Small Wind Turbine, wind generation, wind assessment, small wind farm, urban wind farm

Industrial Building Construction, Power and Communication Line and Related Structures Construction, Electrical Contractors, Other Building Equipment Contractors, All Other Specialty Trade Contractors

UTILITY CONTRACTOR, TELECOMMUNICATIONS, UNDERGROUND, CONSTRUCTION, DIRECTIONAL BORING, MANHOLES, TRENCHING, FIBER, EXCAVATION, WATER MAIN, SEWER BORES, CONDUIT, HANDHOLES, GAS MAIN

general contracting

Power and Communication Line and Related Structures Construction, Highway, Street, and Bridge Construction, Electrical Contractors, Other Building Equipment Contractors, All Other Specialty Trade Contractors

New Housing Builders, Commercial, Building, Power, Communication, Electrical, Contractor, Plumbing, Heating, Equipment, Landscaping, Services, Repair, Maintenance

Electrical

Other Electric Power Generation, Power and Communication Line and Related Structures Construction

New Multifamily Housing Construction (except Operative Builders), Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction

RADIODETECTION, VIVAX, METROTECH, RKI, CABLE LOCATOR, PIPE LOCATOR, MARKER LOCATOR, PUSH CAMERA, CRAWLER CAMERA, POLE CAMERA, GAS DETECTOR, LEAK DETECTOR, METAL DETECTOR, GROUND RADAR, FAULT FINDER, DEFECT MAPPER

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

Power and Communication Line and Related Structures Construction

Other Electric Power Generation, Commercial and Institutional Building Construction, Power and Communication Line and Related Structures Construction, Glass and Glazing Contractors, Heating Equipment (except Warm Air Furnaces) Manufacturing

Power and Communication Line and Related Structures Construction

Construction Sand and Gravel Mining, Support Activities for Coal Mining, Support Activities for Metal Mining, Support Activities for Nonmetallic Minerals (except Fuels) Mining, New Multifamily Housing Construction (except Operative Builders)