| NZ Apps | |
| NZ Capital Growth Partners Ltd | Auckland |
| NZ Consumables IT Supplies Ltd | Auckland |
| NZ Controls Ltd | Auckland |
| NZ Digital | Auckland |
| NZ Digital Government | Auckland |
| NZ Hi-Tech Awards | |
| NZ Institute of Economic Research | |
| NZ Native Honey Products Ltd | |
| NZ Progress Ltd | Auckland |
| NZ Taxi Communications | |
| NZ Tech Marketers Group | |
| Nzdesigns | Auckland |
| NZDH Ltd | Waikato |
| NZeno | |
| NZland | |
| NZME | |
| NZServers | Canterbury |
| NZTEC | |
| NZWeb | |
| NZWebHost | Auckland |
| NZWebSoft | |
| OA Systems Ltd | Auckland |
| Objective NZ | Wellington |
| Obtrix, Inc. | Auckland |
| OCL Ltd | Auckland |
| Office of the Privacy Commissioner | Wellington |
| Office Systems Consultants Ltd | Canterbury |
| OfficeTech Ltd | Canterbury |
| OJB Computing | |
| OK Computer Ltd | Waikato |
| Olympic | Auckland |
| Olympic33 | |
| Omega Tech Ltd | Canterbury |
| OmniNet Ltd | Bay of Plenty |
| OmniTech | Auckland |
| On Company Ltd | Auckland |
| On the Grid | |
| One New Zealand Group Ltd | |
| One Technology | |
| OneCall | |
| OneHost | Wellington |
| OneHQ | |
| OneNet Ltd | Auckland |
| OneVision IT | |
| OnFinality | Auckland |
| Online Advantage Ltd | Waikato |
| Online Asset Partners | Auckland |
| Online Communications | Wellington |
| Online Computers | |