| Intelligent Information Solutions | Wellington |
| Intellium Technology | Auckland |
| Interaction | Auckland |
| Interactive Advertising Bureau of NZ, Inc. | Auckland |
| Intermart NZ | Canterbury |
| Internet Marketing International Ltd | Nelson |
| InternetNZ | Wellington |
| InterSoft Systems | Hawke's Bay |
| Intuitive Systems | Auckland |
| Inventas Media | Wellington |
| Ion Technologies | Northland |
| iPayroll Ltd | Auckland |
| IPC Computer Solutions | Canterbury |
| ISECT | Hawke's Bay |
| ISoftware Ltd | Taranaki |
| iSystems Ltd | Hawke's Bay |
| IT Brief New Zealand | Auckland |
| IT Bureau | Auckland |
| iT Consultants NZ Ltd | Auckland |
| IT Live Ltd | Auckland |
| IT Matrix Ltd | Bay of Plenty |
| IT Sales & Service Ltd | Auckland |
| IT Service Management Forum | Canterbury |
| IT-Direct Ltd | Auckland |
| IT@Work | West Coast |
| iTOPS Ltd | Canterbury |
| ITSS Online Information Center | Auckland |
| Jag Creative | Auckland |
| Janko Computers | Taranaki |
| Janter Electronics | Auckland |
| Javln | Auckland |
| Jaytech | Auckland |
| Jenlogix Ltd | Auckland |
| Jethro Carr | Wellington |
| Jewellers Computer Till | Canterbury |
| Joomla! New Zealand | Auckland |
| Journey Digital | Auckland |
| JRB Software Ltd | Canterbury |
| JTS Power Ltd | Auckland |
| JungleGym | Auckland |
| JV Systems Engineering Ltd | Waikato |
| JZM Web Development | Auckland |
| Kamahi Electronics Ltd | Otago |
| Karebou | Auckland |
| Kauri Academy | |
| Kea Software Consulting Ltd | Wellington |
| Keeping IT Ezi PC Ltd | Bay of Plenty |
| Keraplast | |
| Keri Digital | Northland |
| Key software | Waikato |