334111 – Electronic Computer Manufacturing

334112 – Computer Storage Device Manufacturing

334118 – Computer Terminal And Other Computer Peripheral Equipment Manufacturing

334290 – Other communications equipment manufacturing

334610 – Manufacturing and reproduction magnetic and optical recording

335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing

423430 – Computer And Computer Peripheral Equipment And Software Merchant Wholesalers

513210 – Software Publishers

517121 – Telecommunications reseller

517122 – Agents for wireless telecom services

517810 – All other telecommunications

518210 – Computer infrastructure, data processing, web hosting, and other services

519290 – Web search portals and 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

541990 – All Other Professional, Scientific, And Technical Services

561499 – All Other Business Support Services

611420 – Computer training

811210 – Electronic and precision equipment repair and maintenance