| MEA Mobile Ltd | Waikato |
| Meanwhile Ltd | Auckland |
| Media Design School | |
| Media Suite | Canterbury |
| MediaCore | Auckland |
| MediaSculpt | Manawatu-Wanganui |
| Medical Research Institute of New Zealand | |
| Medtech Global | Auckland |
| Mega | Auckland |
| Mega Ltd | Auckland |
| Megabit.co.nz | |
| Megabits Trust | Auckland |
| Megabyte New Zealand Ltd | Wellington |
| Mello | |
| Member Express | |
| 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 |
| Mimic Technologies | |
| Mindlogik | Auckland |
| Mindworks Creative | Auckland |
| MinervaMail | Auckland |
| Ministry of Awesome | Canterbury |
| Ministry of Business, Innovation and Employment | |
| Mint Design Ltd | Canterbury |
| Mint Innovation | Auckland |
| MinterEllisonRuddWatts | |
| MINTOnline | |
| MOCA | Bay of Plenty |
| Modica Group | Auckland |
| Mogul Ltd | Hawke's Bay |
| Molten Media Trust | Canterbury |
| MoneyWorks | Auckland |
| Monitor Business Machines Ltd | Auckland |
| Monster Creative | |
| Montage Professional Services | Canterbury |
| Mooce | |
| More4Apps | Waikato |
| MoST | Wellington |
| Mote | |
| MotelMate | Auckland |
| Mothership | Auckland |