519190- All Other Information Services
541330- Engineering Services
541511- Custom Computer Programming Services
541512- Computer Systems Design Services
541513- Computer Facilities Management Services
541519- Other Computer Related Services (Primary)
541611- Administrative Management and General Management Consulting Services
541618- Other Management Consulting Services
541690- Other Scientific and Technical Consulting Services
541715- Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541990- All Other Professional, Scientific, and Technical Services
561621- Security System Services (except Locksmiths)
611420- Computer Training
611710- Educational Support Services