| DIALOG FITZROY LIMITED | Registered | NZ Limited Company | 535973 | government contract suppliers |
| DIAMOND CIVIL LIMITED | Registered | NZ Limited Company | 2202837 | government contract suppliers |
| DIAMOND RESIDENTIAL LIMITED | Registered | NZ Limited Company | 7143395 | councillor interest |
| Diamonds in the Community | Registered | Charitable Trust | - | councillor interest |
| Diana Etheridge | Unknown | - | - | councillor interest |
| Diana Robinson | Registered | Sole Trader | - | government contract suppliers |
| Dianne McGregor | Registered | Sole Trader | - | government contract suppliers |
| DIASORIN AUSTRALIA PTY LTD | Removed | Overseas ASIC Company | 3016120 | government contract suppliers |
| Diecast Collectables | Registered | Sole Trader | - | government contract suppliers |
| DIESEL AGENCIES LIMITED | Registered | NZ Limited Company | 1202547 | government contract suppliers |
| Diesel and Dirt Trust | Unknown | - | - | councillor interest |
| DIESEL SOLUTIONS LIMITED | Removed | NZ Limited Company | 1339564 | government contract suppliers |
| DIG EASTLAND CIVIL LIMITED | Registered | NZ Limited Company | 8453463 | government contract suppliers |
| DIGGER SOLUTIONS LIMITED | Registered | NZ Limited Company | 2181811 | government contract suppliers |
| DIGITAL DATA SYSTEMS LIMITED | Registered | NZ Limited Company | 1284567 | government contract suppliers |
| DIGITAL DILIGENCE LIMITED | Registered | NZ Limited Company | 8173423 | government contract suppliers |
| Digital Inclusion Alliance Aotearoa (DIAA) | Unknown | - | - | corporate donations |
| Digital Indigenous.com Ltd | Registered | NZ Limited Company | - | government contract suppliers |
| DIGITAL SAFETY PTY LTD | Removed | Overseas ASIC Company | 2357614 | government contract suppliers |
| DIGITAL SCIENCES LIMITED | Removed | NZ Limited Company | 6297927 | government contract suppliers |
| DIGITAL TRANSFORMATION LIMITED | Registered | NZ Limited Company | 5480103 | government contract suppliers |
| DIGITALSTORY LIMITED | Registered | NZ Limited Company | 1080106 | councillor interest |
| DIGITYPE LIMITED | Registered | NZ Limited Company | 1707327 | government contract suppliers |
| Dilbihar Ltd | Unknown | - | - | councillor interest |
| DILIGENT CORPORATION | Removed | Overseas Non-ASIC Company | 2005673 | government contract suppliers |
| DILLON AG LIMITED | Registered | NZ Limited Company | 1972111 | councillor interest |
| DILLON FAMILY HOLDINGS LIMITED | Registered | NZ Limited Company | 1553337 | councillor interest |
| DIMENSION BUILDING LIMITED | Registered | NZ Limited Company | 1123424 | government contract suppliers |
| Dimension Data | Registered | NZ Limited Company | - | government contract suppliers |
| Dingle Property Trust | Unknown | - | - | councillor interest |
| Dingwall Trust | Registered | Charitable Trust | - | mp interest |
| Dingwall Trust in Auckland and Distributed to Families in Need in Māngere and Mt | Unknown | - | - | mp interest |
| DINNEEN ENVIRONMENTAL MONITORING LIMITED | Registered | NZ Limited Company | 1540138 | government contract suppliers |
| DIONA (NZ) LIMITED | Registered | NZ Limited Company | 3964678 | government contract suppliers |
| DIOSCURI LIMITED | Registered | NZ Limited Company | 6280791 | government contract suppliers |
| DIRECT EARTH LIMITED | Registered | NZ Limited Company | 3378644 | government contract suppliers |
| DIRECT ENERGY SOLUTIONS LIMITED | In Liquidation | NZ Limited Company | 5591907 | government contract suppliers |
| direct impact consulting | Unknown | - | - | government contract suppliers |
| DIRECT MECHANICAL SERVICES LIMITED | Registered | NZ Limited Company | 640741 | government contract suppliers |
| DIRECT SAFETY LIMITED | Removed | NZ Limited Company | 1712292 | government contract suppliers |
| Direct Security Services | Unknown | - | - | government contract suppliers |
| DIRECTIONZ LIMITED | Registered | NZ Limited Company | 941355 | government contract suppliers |
| Director’s Fees, Te Putea Whakatupu Trust | Unknown | - | - | mp interest |
| Director’s Fees, Te Putea Whakatupu Trust (ceased in December 2017) | Unknown | - | - | mp interest |
| DIRT DYNAMICS LIMITED | Registered | NZ Limited Company | 6778914 | government contract suppliers |
| DIRTWORX LIMITED | In Liquidation | NZ Limited Company | 6077733 | government contract suppliers |
| Disability Reference Group | Unknown | - | - | councillor interest |
| Disabled Persons Assembly New Zealand | Registered | Incorporated Society | - | kanoa recipientsgovernment contract suppliers |
| Discovery Marine Limited | Unknown | - | - | government contract suppliers |
| DISH FOODS (NZ) LIMITED | Registered | NZ Limited Company | 1535448 | government contract suppliers |