NAICS Codes


North American Industry Classification System:

  • 541330 Engineering Services
  • 541511 Custom Computer Programming Services
  • 541512 – Computer Systems Design Services
  • 541513 Computer Facilities Management Services
  • 541611 Admin and General Mgmt. Services
  • 561110 Office Administrative Services
  • 561210 Facilities Support Services
  • 561320 Temporary Help Services
  • 561330 Professional Employer Organizations
  • 561612 Security Guards and Control Services
  • 611710 Educational Support Services
  • 561990 All Other Support Services
  • 541990  All Other Prof, Scientific, and Tech Services