| MediaCore | Auckland |
| MediaSculpt | Manawatu-Wanganui |
| Medical Research Institute of New Zealand | |
| Medtech Global | Auckland |
| Mega | Auckland |
| Mega Ltd | Auckland |
| Megabits Trust | Auckland |
| Megabyte New Zealand Ltd | Wellington |
| Meta Digital | Canterbury |
| Metrics Media | Auckland |
| MFL 2020 Ltd | Auckland |
| Micado | Auckland |
| Microsale NZ | Otago |
| Microsoft New Zealand | Auckland |
| MicroTech Ltd | Canterbury |
| MIG Angels | Manawatu-Wanganui |
| Mighty IT Ltd | Auckland |
| Millennium Computer Services Ltd | Wellington |
| Millennium Technology | Waikato |
| Mindlogik | Auckland |
| Mindworks Creative | Auckland |
| MinervaMail | Auckland |
| Ministry of Awesome | Canterbury |
| Ministry of Business, Innovation and Employment | |
| Ministry of Defnce | |
| Mint Design Ltd | Canterbury |
| Mint Innovation | Auckland |
| MinterEllisonRuddWatts | |
| MOCA | Bay of Plenty |
| Modica Group | Auckland |
| Mogul Ltd | Hawke's Bay |
| Molten Media Trust | Canterbury |
| MoneyWorks | Auckland |
| Monitor Business Machines Ltd | Auckland |
| Montage Professional Services | Canterbury |
| More4Apps | Waikato |
| MoST | Wellington |
| MotelMate | Auckland |
| Mothership | Auckland |
| Motion Design | Auckland |
| Movac | Auckland |
| MSO Design | Wellington |
| MultiMedia Communications Ltd | Canterbury |
| mvSolutions Ltd | Auckland |
| My Tours | Auckland |
| MyHub | Auckland |
| Mytronics Ltd | Gisborne |
| Nanogames | Otago |
| Nanophage Technologies Ltd | |
| Naos Ltd | Wellington |