Electronic Computer Manufacturing, Computer Storage Device Manufacturing, Telephone Apparatus Manufacturing, Magnetic and Optical Recording Media Manufacturing, Computer and Computer Peripheral Equipment and Software Merchant Wholesalers

Telephone Apparatus Manufacturing, Software Publishers, Custom Computer Programming Services

Telephone Apparatus Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Other Communications Equipment Manufacturing

Electrical Contractors, Telephone Apparatus Manufacturing, Other Communications Equipment Manufacturing, Audio and Video Equipment Manufacturing, Other Building Material Dealers

Telephone Apparatus Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Other Communications Equipment Manufacturing, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur, Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals

Telephone Apparatus Manufacturing, Electronic Connector Manufacturing, Fiber Optic Cable Manufacturing, Other Communication and Energy Wire Manufacturing

Power and Communication Line and Related Structures Construction, Electrical Contractors, Telephone Apparatus Manufacturing, Motor and Generator Manufacturing, Storage Battery Manufacturing

Electronic Computer Manufacturing, Computer Storage Device Manufacturing, Telephone Apparatus Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Other Communications Equipment Manufacturing

Explosives Manufacturing, Optical Instrument and Lens Manufacturing, Special Die and Tool, Die Set, Jig, and Fixture Manufacturing, Electronic Computer Manufacturing, Computer Storage Device Manufacturing

AVCO SECURITY SYSTEMS, INC.

SPECTRALINK CORPORATION

Telephone Apparatus Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Other Communications Equipment Manufacturing, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur, Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals

Electrical Contractors, Electronic Computer Manufacturing, Computer Storage Device Manufacturing, Telephone Apparatus Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing

All Other Miscellaneous Food Manufacturing, Fabric Coating Mills, All Other Converted Paper Product Manufacturing, Commercial Screen Printing, Unlaminated Plastics Film and Sheet (except Packaging) Manufacturing

Telephone Apparatus Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Other Communications Equipment Manufacturing, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur, Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals

Telephone Apparatus Manufacturing, Computer and Computer Peripheral Equipment and Software Merchant Wholesalers, Software Publishers, Security Systems Services (except Locksmiths), National Security

Telephone Apparatus Manufacturing, Storage Battery Manufacturing, All Other Miscellaneous Electrical Equipment and Component Manufacturing, Other Electronic Parts and Equipment Merchant Wholesalers

Electrical Contractors, Electronic Computer Manufacturing, Telephone Apparatus Manufacturing, Motion Picture and Video Production, Engineering Services

Telephone Apparatus Manufacturing, Other Electronic Parts and Equipment Merchant Wholesalers, Computer Systems Design Services, Computer Facilities Management Services, Other Computer Related Services

Support Activities for Forestry, Dimension Stone Mining and Quarrying, Construction Sand and Gravel Mining, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction