North American Industry Classification System (NAICS)

238210 - Electrical Contractors and Other Wiring Installation Contractors
334111 - Electronic Computer Manufacturing
334112 - Computer Storage Device Manufacturing
334210 - Telephone Apparatus Manufacturing
334220 - Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
334290 - Other Communications Equipment Manufacturing
334310 - Audio and Video Equipment Manufacturing
334412 - Bare Printed Circuit Board Manufacturing
334413 - Semiconductor and Related Device Manufacturing
334418 - Printed Circuit Assembly (Electronic Assembly) Manufacturing
334419 - Other Electronic Component Manufacturing
335931 - Current-Carrying Wiring Device Manufacturing
335999 - All Other Miscellaneous Electrical Equipment and Component Manufacturing
336413 - Other Aircraft Parts and Auxiliary Equipment Manufacturing
336419 - Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing
336992 - Military Armored Vehicle, Tank, and Tank Component Manufacturing
423410 - Photographic Equipment and Supplies Merchant Wholesalers
517919 - All Other Telecommunications
518210 - Data Processing, Hosting, and Related Services
*519190 - All Other Information Services
541330 - Engineering Services
541360 - Geophysical Surveying and Mapping Services
541370 - Surveying and Mapping (except Geophysical) Services
541511 - Custom Computer Programming Services
541512 - Computer Systems Design Services
541513 - Computer Facilities Management Services
541519 - Other Computer Related Services
541611 - Administrative Management and General Management Consulting Services
541618 - Other Management Consulting Services
541690 - Other Scientific and Technical Consulting Services
541712 - Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)
541990 - All Other Professional, Scientific, and Technical Services
*561110 - Office Administrative Services
561210 - Facilities Support Services
561621 - Security Systems Services (except Locksmiths)

Product Service Codes (PSC)

7030 - ADP Software
7050 - ADP Components
AC36 - R&D- Defense System: Ships (Management/Support)
AC66 - R&D- Defense System: Electronics/Communication Equipment (MANAGEMENT/SUPPORT)
D302 - IT AND TELECOM- Systems Development
D306 - IT AND TELECOM- Systems Analysis
D307 - IT AND TELECOM- IT Strategy And Architecture
D308 - IT AND TELECOM- Programming
D310 - IT AND TELECOM- Cyber Security And Data Backup
D316 - IT AND TELECOM- Telecommunications Network Management

*Large Business

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