Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur, Other Measuring and Controlling Device Manufacturing

Steam and Air-Conditioning Supply, Plumbing, Heating, and Air-Conditioning Contractors, Other Building Equipment Contractors, Petroleum Refineries, Other Metal Valve and Pipe Fitting Manufacturing

Analytical Laboratory Instrument Manufacturing, Other Measuring and Controlling Device Manufacturing

Analytical Laboratory Instrument Manufacturing, Other Measuring and Controlling Device Manufacturing

Lead Ore and Zinc Ore Mining, Copper Ore and Nickel Ore Mining, Dimension Stone Mining and Quarrying, Crushed and Broken Limestone Mining and Quarrying, Crushed and Broken Granite Mining and Quarrying

All Other Specialty Trade Contractors, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur, Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial, Irradiation Apparatus Manufacturing, Other Measuring and Controlling Device Manufacturing

Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur, Other Measuring and Controlling Device Manufacturing

Electrical Contractors, Optical Instrument and Lens Manufacturing, Other Measuring and Controlling Device Manufacturing, Wired Telecommunications Carriers, Facilities Support Services

Other Measuring and Controlling Device Manufacturing, Aircraft Manufacturing, Other Support Activities for Air Transportation, Testing Laboratories, All Other Professional, Scientific, and Technical Services

Other Measuring and Controlling Device Manufacturing, Other Commercial and Industrial Machinery and Equipment Rental and Leasing, Engineering Services, Testing Laboratories, Computer Systems Design Services

Other Electronic Component Manufacturing, Other Measuring and Controlling Device Manufacturing, Current-Carrying Wiring Device Manufacturing, All Other Miscellaneous Electrical Equipment and Component Manufacturing, Engineering Services

Power and Communication Line and Related Structures Construction, Electronic Computer Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Other Communications Equipment Manufacturing, Other Electronic Component Manufacturing