541613

Marketing Consulting Services

541511

Customer Computer Programming Services

541330

Engineering Services

541512

Computer Systems Design Services

541513

Computer Facilities Management Services

541690

Other Scientific & Technical Consulting Services

541720

Research & Development in the Social Sciences & Humanities

541990

All Other Professional, Scientific & Technical Services

611420

Computer Training

611430

Professional & Management Development Training

611710

Educational Support Services

517919

All-other-telecommunications