MessageMedia NZ Ltd
- Level 2 ECN House, 5 Whitaker Place, Auckland
Mediaedge:cia
- Level 2, Corner Augustus Terrace & Parnell Rise, Parnell, Auckland
Melville Intermediate
- Mount View Road, Melville, Hamilton
Meta Group
- Level 1, 144 Parnell Road, Parnell, Auckland
Medictronix NZ Limited
- Unit B4, 16 Saturn Place, Albany, North Shore
Mercury Energy Limited
- 602 Great South Road, Greenlane, Auckland