| MacDiarmid Institute | |
| Mach8 leasing Ltd | Auckland |
| MacNet Technologies Ltd | Bay of Plenty |
| Macro Ltd | |
| Macrotech Ltd | Waikato |
| MacStudio Web Design | Otago |
| Maffey,com Ltd | Auckland |
| MageBinary | |
| Magellan Software Ltd | Auckland |
| MAGIQ Software | |
| MagnumMac | Canterbury |
| Mahitahi Colab | |
| MailWasher | |
| Maker Design Ltd | Canterbury |
| Malaghan Institute of Medical Research | Wellington |
| Manage IT | Canterbury |
| Managed Computer Networks Ltd | Marlborough |
| Manawatū Tech Collective | |
| Mandeno Electronic Equipment Ltd | Auckland |
| Mandriva Users Board | Waikato |
| Manifold | |
| Mantis Digital | Auckland |
| Mantis Systems Ltd | Otago |
| Manuka Bioscience Ltd | |
| Manukau Institute of Technology | Auckland |
| Manukau Institute of Technology - Digital Technologies | Auckland |
| Manux Solutions | Canterbury |
| MarginFuel | Wellington |
| Marketelements Ltd | |
| Marketing Impact | Auckland |
| MARS Bioimaging Ltd | |
| Martian Labs Ltd | Bay of Plenty |
| Martin, Jenkins & Associates Ltd | Wellington |
| Marty Coyle | Canterbury |
| Maser Communications | Auckland |
| Massey University of New Zealand | Manawatu-Wanganui |
| MasTec Ltd | Auckland |
| Mata Ltd | Auckland |
| Matagouri Technology | |
| Matricle Solutions Ltd | |
| Matrix AI | |
| Matrix Applied Computing Ltd | Auckland |
| Matū Fund | Auckland |
| Maui Capital | Auckland |
| Maxgen Media | Auckland |
| MBQ Partners Ltd | |
| MC Communications NZ | Taranaki |
| MCA Software | Canterbury |
| MCS Digital | Auckland |
| MD5summer | Auckland |