334290 – Other communications equipment manufacturing

334610 – Manufacturing and reproduction magnetic and optical recording

514330 – Engineering Services

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

541511 – Custom computer programming services

541512 – Computer systems design services

541513 – Computer facilities management services

541519 – Other computer related services

611420 – Computer training

811210 – Electronic and precision equipment repair and maintenance