| HUSQVARNA NEW ZEALAND LIMITED | Registered | NZ Limited Company | 111861 | government contract suppliers |
| HUTCH CIVIL LIMITED | Registered | NZ Limited Company | 8503653 | government contract suppliers |
| Hutt City Kindergartens Inc | Unknown | - | - | government contract suppliers |
| Hutt Valley Chamber of Commerce | Unknown | - | - | government contract suppliers |
| HUTT VALLEY CHAMBER OF COMMERCE AND INDUSTRY INCORPORATED | Registered | Incorporated Society | - | government contract suppliers |
| Hutt Valley District Health Board | Unknown | - | - | government contract suppliers |
| Hutt Valley Sexual Abuse Support and Healing Incorporated | Registered | Incorporated Society | - | government contract suppliers |
| Hutt Valley Sports Awards Inc. | Registered | Incorporated Society | - | councillor interest |
| Hutton Wilson Charitable Trust | Unknown | - | - | kanoa recipients |
| HV POWER MEASUREMENTS AND PROTECTION LIMITED | Registered | NZ Limited Company | 636736 | government contract suppliers |
| HVAC PRO LIMITED | Registered | NZ Limited Company | 8126096 | government contract suppliers |
| HWCP MANAGEMENT LIMITED | Registered | NZ Limited Company | 6260486 | kanoa recipients |
| HWW Trust | Unknown | - | - | mp interest |
| HYDESTOR MANUFACTURING LIMITED | Removed | NZ Limited Company | 422700 | government contract suppliers |
| HYDESTOR SHELVING LIMITED | Registered | NZ Limited Company | 6441114 | government contract suppliers |
| HYDRA-CARE (NZ) LIMITED | Registered | NZ Limited Company | 905436 | government contract suppliers |
| Hydro-Electric Corporation (Entura) Australia | Unknown | - | - | government contract suppliers |
| HYDROTECH LIMITED | Registered | NZ Limited Company | 1197079 | government contract suppliers |
| HYNDMAN CONSTRUCTION LIMITED | Registered | NZ Limited Company | 9333775 | government contract suppliers |
| HYNDMAN'S LIMITED | Removed | NZ Limited Company | 144161 | government contract suppliers |
| HYPER TRUST LIMITED | Registered | NZ Limited Company | 5418321 | councillor interest |
| Hyperion Asset Management | Unknown | - | - | fund managers |
| HYPR INNOVATION LIMITED | Registered | NZ Limited Company | 5434867 | government contract suppliers |
| HYSLOP RURAL TRANSPORT LIMITED | Registered | NZ Limited Company | 657887 | government contract suppliers |
| HYUNDAI MOTORS NEW ZEALAND LIMITED | Registered | NZ Limited Company | 1942204 | government contract suppliers |
| HYVAN ANAESTHESIA LIMITED | Registered | NZ Limited Company | 4543658 | councillor interest |
| I AM HOPE LIMITED | Registered | NZ Limited Company | 9338389 | corporate donations |
| I D LOADER LIMITED | Registered | NZ Limited Company | 15108 | government contract suppliers |
| I WANT TO CHANGE THE WORLD LIMITED | Registered | NZ Limited Company | 966917 | councillor interest |
| I-MED NEW ZEALAND BIDCO LIMITED | Registered | NZ Limited Company | 8253036 | government contract suppliers |
| I-MED Radiology | Unknown | - | - | government contract suppliers |
| I-Ting Chuang | Unknown | - | - | government contract suppliers |
| IAENGG PTY LTD | Unknown | - | - | government contract suppliers |
| Iain Graham RABBITTS | Registered | Sole Trader | - | government contract suppliers |
| IAN LEATHWICK CONTRACTING LIMITED | Registered | NZ Limited Company | 1545719 | government contract suppliers |
| IAN MACKENZIE LIMITED | Removed | NZ Limited Company | 14561 | |
| IAN MUNRO (DESIGNART) LIMITED | Removed | NZ Limited Company | 338660 | government contract suppliers |
| Ian Robert William Scott | Registered | Sole Trader | - | government contract suppliers |
| IARAU LIMITED | Registered | NZ Limited Company | 8964768 | government contract suppliers |
| IAS FINE ART LOGISTICS NZ LIMITED | Removed | NZ Limited Company | 3761377 | government contract suppliers |
| Ibex Lighting | Unknown | - | - | government contract suppliers |
| IBIS International | Removed | NZ Limited Company | - | government contract suppliers |
| IBM NEW ZEALAND LIMITED | Registered | NZ Limited Company | 12262 | government contract suppliers |
| ICAD CONSULTANTS LIMITED | Registered | NZ Limited Company | 5968612 | government contract suppliers |
| ICE ELECTRICAL (MANAWATU) LIMITED | Registered | NZ Limited Company | 8372345 | government contract suppliers |
| ICE ELECTRICAL LIMITED | Registered | NZ Limited Company | 5672509 | government contract suppliers |
| ICE FIRE PROTECTION LIMITED | Registered | NZ Limited Company | 6099599 | government contract suppliers |
| ICE SPORTS DUNEDIN INCORPORATED | Registered | - | - | |
| ICEHOUSE CONSULTING LIMITED | Registered | NZ Limited Company | 3854157 | government contract suppliers |
| ICEHOUSE VENTURES LIMITED | Registered | NZ Limited Company | 1858437 | government contract suppliers |
