511210 Software publishers

518210 Data processing, hosting, and related services

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519130 Internet publishing and broadcasting and web search portals

541330 Engineering services

541511 Custom computer programming services

541512 Computer systems design services

541513 Computer facilities management services

541519 Other computer related services

541611 Administrative management and general management consulting services

541690 Other scientific and technical consulting services

541720 Research and development in the social sciences and humanities

541990 All other professional, scientific, and technical services

561110 Office administrative services

561320 Temporary help services

611420 Computer training

611430 Professional and management development training

611519 Other technical and trade schools

611710 Educational support services

811212 Computer and office machine repair and maintenance