Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers, Electrical and Electronic Appliance, Television, and Radio Set Merchant Wholesalers, Other Electronic Parts and Equipment Merchant Wholesalers, Wired Telecommunications Carriers, Engineering Services

Other Scientific and Technical Consulting Services, Marketing Research and Public Opinion Polling

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur, Other Aircraft Parts and Auxiliary Equipment Manufacturing, Guided Missile and Space Vehicle Manufacturing, Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing

Water Supply and Irrigation Systems

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur

Pump and Pumping Equipment Manufacturing, Motor Vehicle Body Manufacturing