334111 – Electronic Computer Manufacturing

334112 – Computer Storage Device Manufacturing

334118 – Computer Terminal and Other Computer Peripheral Equipment Manufacturing

334290 – Other Communication Equipment Manufacturing

334613 – Blank Magnetic and Optical Recording Media Manufacturing

423430 – Computer and Computer Peripheral Equipment and Software Merchant Wholesalers

511210 – Software Publishers

517911 – Telecommunications Reseller

517919 – All Other Telecommunications

518210 – Data Processing, Hosting and Related Services

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

611420 – Computer Training

811212 – Computer and Office Machine Repair and Maintenance