| MKS Holdings Ltd | Unknown | - | - | government contract suppliers |
| ML & JD PROPERTY MANAGEMENT LIMITED | Registered | NZ Limited Company | 3300032 | government contract suppliers |
| MMB TRUSTEE LIMITED | Registered | NZ Limited Company | 3565853 | mp interest |
| MMCA TASMAN LIMITED | Registered | NZ Limited Company | 9316255 | councillor interest |
| MMM Holdings Ltd t/a Anza Motor Company | Unknown | - | - | government contract suppliers |
| Moa Resources | Registered | Sole Trader | - | government contract suppliers |
| MOAA ARCHITECTS LIMITED | Registered | NZ Limited Company | 2427238 | government contract suppliers |
| MOANA COFFEE LIMITED | Registered | NZ Limited Company | 8200101 | government contract suppliers |
| MOANA DOWNS LIMITED | Removed | NZ Limited Company | 136725 | councillor interest |
| MOANA LIMITED | Registered | NZ Limited Company | 1019584 | iwi subsidiaries |
| Moana Research | Unknown | - | - | government contract suppliers |
| Moana Va, Navigators of Pacific Pride Incorporated | Registered | Incorporated Society | - | government contract suppliers |
| Moananui - Blue Economy cluster | Unknown | - | - | corporate donations |
| MOBIL OIL NEW ZEALAND LIMITED | Registered | NZ Limited Company | 7815 | government contract suppliers |
| MOBILE DESIGNS INC | Unknown | - | - | government contract suppliers |
| MOBILE LIMITED | Registered | NZ Limited Company | 5879232 | government contract suppliers |
| MOBILITY ENGINEERING LIMITED | Registered | NZ Limited Company | 2004974 | government contract suppliers |
| MOBILITY LAB LIMITED | Registered | NZ Limited Company | 8825515 | government contract suppliers |
| Mobius Research & Strategy Ltd. | Unknown | - | - | government contract suppliers |
| MOBIUS RESEARCH AND STRATEGY LIMITED | Registered | NZ Limited Company | 1048930 | government contract suppliers |
| MOD LIMITED | Removed | NZ Limited Company | 1469954 | government contract suppliers |
| Modcom Portable Buildings Ltd | Unknown | - | - | government contract suppliers |
| MODCON PROJECTS LIMITED | Registered | NZ Limited Company | 7893096 | government contract suppliers |
| MODE DESIGN LIMITED | Removed | NZ Limited Company | 1649378 | government contract suppliers |
| MODERN BUILDING SOLUTIONS LIMITED | Registered | NZ Limited Company | 5798068 | government contract suppliers |
| MODLR NEW ZEALAND PTY LIMITED | Registered | NZ Limited Company | 8189425 | government contract suppliers |
| MODSCAPE LIMITED | Registered | NZ Limited Company | 8224412 | government contract suppliers |
| Modserve NZ Ltd | Unknown | - | - | government contract suppliers |
| MODULAR CLASSROOMS LIMITED | Registered | NZ Limited Company | 6401894 | government contract suppliers |
| MOEMOEĀ LIMITED | Registered | - | - | |
| MOFFAT CONSULTING LIMITED | Registered | NZ Limited Company | 1857878 | government contract suppliers |
| MOGEO LIMITED | Registered | NZ Limited Company | 3372011 | kanoa recipients |
| Mohak_Kingz Contracting Limited | Unknown | - | - | government contract suppliers |
| MOHAKA RAFTING LIMITED | Registered | NZ Limited Company | 2317032 | iwi subsidiaries |
| MOHAKA_KINGZ CONTRACTING LIMITED | In Liquidation | NZ Limited Company | 7460236 | kanoa recipients |
| Mohammed Buksh | Registered | Sole Trader | - | government contract suppliers |
| Mohua 2042 Charitable Trust | Unknown | - | - | councillor interest |
| Mohua Social Services Charitable Trust | Registered | Charitable Trust | - | government contract suppliers |
| Moire Road Partnership | Registered | Limited Partnership (NZ) | - | iwi subsidiaries |
| MOJO MODERN JOINERY LIMITED | Registered | NZ Limited Company | 3553871 | councillor interest |
| MOKAI HOLDINGS LIMITED | Registered | NZ Limited Company | 1565228 | councillor interest |
| Mōkai Pātea Waitangi Claims Trust Hon Willow-Jean Prime | Unknown | - | - | mp interest |
| Mōkai Pātea Waitangi Claims Trust Hon Willow-Jean Prime (Labour, Northland) | Unknown | - | - | mp interest |
| Mokaihaha Kokaho Trust | Unknown | - | - | councillor interest |
| Mokaihaha Kokako Trust | Registered | Charitable Trust | - | councillor interest |
| Mokihinui-Lyell Backcountry Trust | Registered | Charitable Trust | - | kanoa recipients |
| MOKO CONSULTANTS LIMITED | Registered | NZ Limited Company | 5408461 | councillor interest |
| MOKO KAURI LIMITED | Registered | NZ Limited Company | 6264489 | government contract suppliers |
| Mokonui Station Ltd and Sam Gemmell Family Trust | Unknown | - | - | kanoa recipients |
| MOKOWHITI LIMITED | Registered | NZ Limited Company | 1866874 | government contract suppliers |
