| WebPartners | Waikato |
| Webpix | Auckland |
| Webquest Ltd | Manawatu-Wanganui |
| WeBrand | Auckland |
| Website Builder | Auckland |
| Website Designers.net.NZ | Canterbury |
| Website Designs NZ | Marlborough |
| Webstarters | Auckland |
| Webstream Ltd | Auckland |
| Webstruxure | Wellington |
| WebtecHosting | Taranaki |
| Webtigers | Auckland |
| Webtools | Canterbury |
| Webtools | Canterbury |
| Webtrix | Auckland |
| WebXperts Ltd | Wellington |
| Web|dew Ltd | Otago |
| WeDoWebsites | Nelson |
| Wellington Macintosh Society, Inc. | Wellington |
| Wellington Perl Mongers | Wellington |
| Western Institute of Technology at Taranaki | Taranaki |
| Westpac New Zealand Ltd | Auckland |
| Weta FX | Wellington |
| Wharf42 Ltd | Auckland |
| Whitecliffe | |
| Whitireia and WelTec | |
| Wicked eye | Bay of Plenty |
| Wicked Networks | Auckland |
| Wild Blue Yonder Enterprises Ltd | Wellington |
| Wilson Associates | Waikato |
| Winet | Auckland |
| WinMac Computer Solutions Ltd | Auckland |
| Wired Internet Group Ltd | Canterbury |
| WizBang Technologies | Auckland |
| WIZwireless Ltd | Wellington |
| WNT Ventures | Bay of Plenty |
| Wonderlab | Wellington |
| WordJot | Waikato |
| Words & Images Ltd | Wellington |
| Work n Play Software Ltd | Auckland |
| Working Online Ltd | Marlborough |
| Works | Canterbury |
| WorldNet | Auckland |
| WorldNZ | Auckland |
| WorldxChange Communications Ltd | Auckland |
| Wright Technologies | Auckland |
| WriteMaps | Auckland |
| WTE Ltd | Canterbury |
| WWW Design | Auckland |
| XACT Software Solutions | Auckland |