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Last Updated: Sep 15, 2016 URL: Print Guide RSS UpdatesEmail Alerts

NAICS/SIC Print Page


  • Developed in the 1930s, the Standard Industrial Classification (SIC) code is a 4-digit scheme that organizes 1,004 industries. Some 400 of these are services.
  • Developed in 1997, the North American Industrial Classification System (NAICS), is a six-digit scheme that organizes 1,170 industries, of which 565 are services. Many of the NAICS industries emerged over the past 20 years.

For more information, see:

Sample NAICS Codes

  • 2007 NAICS Definition: 54151
    54151 Computer Systems Design and Related Services
    541511 Custom Computer Programming Services
    541512 Computer Systems Design Services
    541513 Computer Facilities Management Services
    541519 Other Computer Related Services

Sample SIC Codes

  • SIC Codes. 7373 Computer Integrated Systems Design.
    Computer-aided design (CAD) systems services
    Computer-aided engineering (CAE) systems services
    Computer-aided manufacturing (CAM) systems services
    Local area network (LAN) systems integrators
    Network systems integration, computer
    Office automation, computer systems integration
    Systems integration, computer
    Turnkey vendors, computer systems
    Value-added resellers, computer systems
  • SIC Codes. 7379 Computer Related Services, Not Elsewhere Classified
    Computer consultants
    Data base developers
    Data processing consultants
    Disk and diskette conversion services
    Disk and diskette recertification services
    Requirements analysis, computer hardware
    Tape recertification service

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