Hydroelectric Power Generation, Other Electric Power Generation, Residential Remodelers, Other Heavy and Civil Engineering Construction, Roofing Contractors

Power and Communication Line and Related Structures Construction, Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial, Power, Distribution, and Specialty Transformer Manufacturing, All Other Miscellaneous Electrical Equipment and Component Manufacturing

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

Plumbing, Heating, and Air-Conditioning Contractors, Other Building Equipment Contractors, All Other Specialty Trade Contractors, Electric Housewares and Household Fan Manufacturing, Power, Distribution, and Specialty Transformer Manufacturing

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipmen, Welding and Soldering Equipment Manufacturing, All Other Miscellaneous General Purpose Machinery Manufacturing, Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals, Storage Battery Manufacturing

Military use

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals, Motor and Generator Manufacturing, Switchgear and Switchboard Apparatus Manufacturing

FIBER OPTIC TECH.

Commercial and Institutional Building Construction, All Other Specialty Trade Contractors, Canvas and Related Product Mills, All Other Miscellaneous Chemical Product and Preparation Manufacturing, All Other Plastics Product Manufacturing

Semiconductor Machinery Manufacturing, All Other Miscellaneous Electrical Equipment and Component Manufacturing, Industrial Design Services, Other Specialized Design Services, Other Scientific and Technical Consulting Services

Electrical Contractors, Power, Distribution, and Specialty Transformer Manufacturing, Other Construction Material Merchant Wholesalers, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers, Other Electronic Parts and Equipment Merchant Wholesalers

Other Communication and Energy Wire Manufacturing, Computer Systems Design Services, Computer Facilities Management Services, Other Computer Related Services, Computer Training

Residential Electric Lighting Fixture Manufacturing

Telephone Apparatus Manufacturing, All Other Miscellaneous Electrical Equipment and Component Manufacturing, Software Publishers, Engineering Services, Custom Computer Programming Services

Vitreous China, Fine Earthenware, and Other Pottery Product Manufacturing This U.S. industry compris, Residential Electric Lighting Fixture Manufacturing, Furniture Merchant Wholesalers, Other Commercial Equipment Merchant Wholesalers, Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers

Electrical Contractors, All Other Specialty Trade Contractors, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Other Communications Equipment Manufacturing, Audio and Video Equipment Manufacturing

Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing

Other Electric Power Generation, Electric Bulk Power Transmission and Control, Electric Power Distribution, Electrical Contractors, Other Building Equipment Contractors

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

Electrical Contractors, Residential Electric Lighting Fixture Manufacturing, Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing, Other Lighting Equipment Manufacturing, Power, Distribution, and Specialty Transformer Manufacturing