Power and Communication Line and Related Structures Construction, Electrical Contractors, Porcelain Electrical Supply Manufacturing, Optical Instrument and Lens Manufacturing, Electronic Capacitor Manufacturing

Power and Communication Line and Related Structures Construction, Other Heavy and Civil Engineering Construction, Electrical Contractors, Power, Distribution, and Specialty Transformer Manufacturing, Motor and Generator Manufacturing

Electron Tube Manufacturing, Switchgear and Switchboard Apparatus Manufacturing

Masonry Contractors, Glass and Glazing Contractors, Roofing Contractors, Siding Contractors, Electrical Contractors

Hydroelectric Power Generation, Fossil Fuel Electric Power Generation, Nuclear Electric Power Generation, Power and Communication Line and Related Structures Construction, Electrical Contractors

Metal Stamping, Industrial Mold Manufacturing, Bare Printed Circuit Board Manufacturing, Switchgear and Switchboard Apparatus Manufacturing, Engineering Services

Electric Power Distribution, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders, Residential Remodelers

Support Activities for Oil and Gas Operations, Support Activities for Metal Mining, Support Activities for Nonmetallic Minerals (except Fuels) Mining, Natural Gas Distribution, Water Supply and Irrigation Systems

Switchgear and Switchboard Apparatus Manufacturing

Nonferrous Forging, Hand and Edge Tool Manufacturing, Other Communications Equipment Manufacturing, Semiconductor and Related Device Manufacturing, Electronic Connector Manufacturing

Machine Shops, Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial, Totalizing Fluid Meter and Counting Device Manufacturing, Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals, Analytical Laboratory Instrument Manufacturing

Industrial Building Construction, Commercial and Institutional Building Construction, Power and Communication Line and Related Structures Construction, Electrical Contractors, Plumbing, Heating, and Air-Conditioning Contractors

Iron Ore Mining, Gold Ore Mining, Lead Ore and Zinc Ore Mining, Copper Ore and Nickel Ore Mining, Uranium-Radium-Vanadium Ore Mining

Electrical Contractors, Plumbing, Heating, and Air-Conditioning Contractors, Switchgear and Switchboard Apparatus Manufacturing

Natural Gas Distribution, Water Supply and Irrigation Systems, Sewage Treatment Facilities, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders)

Support Activities for Forestry, Support Activities for Oil and Gas Operations, Support Activities for Coal Mining, Support Activities for Metal Mining, Support Activities for Nonmetallic Minerals (except Fuels) Mining

Other Lighting Equipment Manufacturing, Power, Distribution, and Specialty Transformer Manufacturing, Motor and Generator Manufacturing, Switchgear and Switchboard Apparatus Manufacturing

Electronic Coil, Transformer, and Other Inductor Manufacturing, Power, Distribution, and Specialty Transformer Manufacturing, Switchgear and Switchboard Apparatus Manufacturing, Relay and Industrial Control Manufacturing, All Other Miscellaneous Electrical Equipment and Component Manufacturing

Switchgear and Switchboard Apparatus Manufacturing, Consumer Electronics Repair and Maintenance

Support Activities for Oil and Gas Operations, Commercial and Institutional Building Construction, Power and Communication Line and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction