Primary:
541330 – Engineering Services
541511 – Custom Computer Programming Services
541512 – Computer Systems Design Services
Secondary:
511210 – Software Publishers
541513 – Computer Facilities Management Services
541519 – Other Computer Related Services
541611 – Administrative Management and General Management Consulting Services
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
561320 – Temporary Help Services