| JAMES TOWERS CONSULTANTS LIMITED | Registered | NZ Limited Company | 6980033 | government contract suppliers |
| JAMES WALLACE OF NEW ZEALAND LIMITED | Removed | NZ Limited Company | 116052 | |
| JAMES WALLACE PTY LIMITED | Removed | Overseas Non-ASIC Company | 285171 | |
| James Wattie Scholarship | Unknown | - | - | corporate donations |
| JAMES WILSON ANTHONY LIMITED | Removed | NZ Limited Company | 812092 | |
| JAMES WILSON GEORGE ENTERPRISES LIMITED | Registered | NZ Limited Company | 3671871 | |
| JAMES WILSON LIMITED | Removed | NZ Limited Company | 3872996 | |
| JAMES WILSON VEHICLES (2008) LIMITED | Removed | NZ Limited Company | 2108714 | |
| JAMES WILSON VEHICLES LIMITED | Removed | NZ Limited Company | 1698728 | |
| JAMES WREN & CO. LIMITED | Registered | NZ Limited Company | 610089 | government contract suppliers |
| JAMES YOUNG TRUSTEE COMPANY LIMITED | Registered | NZ Limited Company | 3975519 | government contract suppliers |
| JAMIESON MOTORS LIMITED | Registered | NZ Limited Company | 6126974 | councillor interest |
| JAMJAM LIMITED | Registered | NZ Limited Company | 9267607 | government contract suppliers |
| Jane Bowen | Unknown | - | - | government contract suppliers |
| Jane Meares | Unknown | - | - | government contract suppliers |
| JANI-KING (NZ) LIMITED | Registered | NZ Limited Company | 5995008 | government contract suppliers |
| Janice Fredric Family Trust | Unknown | - | - | councillor interest |
| JANICE WILSON TRUSTEES LIMITED | Removed | NZ Limited Company | 1443850 | |
| Janison Education Group | Unknown | - | - | government contract suppliers |
| JANSSEN-CILAG (NEW ZEALAND) LIMITED | Registered | NZ Limited Company | 2147016 | government contract suppliers |
| Jap enterprise limited T/a Subway Titirangi | Unknown | - | - | government contract suppliers |
| Japan Trust Fund and the United Nations Population Fund | Unknown | - | - | mp interest |
| JARDEN SECURITIES LIMITED | Removed | NZ Limited Company | 37128 | fund managers |
| JARDEN SECURITIES LIMITED | Unknown | - | - | nzbn trace |
| JARVIS MCDONALD GROUP LIMITED | Registered | NZ Limited Company | 1686685 | government contract suppliers |
| JASCO APPLIED SCIENCES (AUSTRALIA) PTY LTD | Registered | Overseas ASIC Company | 8350272 | government contract suppliers |
| JASE FAMILY DISCRETIONARY TRUST LIMITED | Registered | NZ Limited Company | 2138070 | mp interest |
| JASH Business Trust | Unknown | - | - | mp interest |
| JASMAX GROUP LIMITED | Registered | NZ Limited Company | 4958980 | government contract suppliers |
| JASMAX LIMITED | Registered | NZ Limited Company | 90762 | government contract suppliers |
| Jasmine Arts & Culture Charitable Trust | Registered | Charitable Trust | - | mp interest |
| Jasmine Turner | Inactive | Sole Trader | - | government contract suppliers |
| Jason Colton | Registered | Sole Trader | - | government contract suppliers |
| Jason McDouall | Unknown | - | - | government contract suppliers |
| Jason Robert Shannon | Registered | Sole Trader | - | government contract suppliers |
| JAXNZ FLOORING SERVICES LIMITED | Registered | NZ Limited Company | 8368844 | government contract suppliers |
| JB Demex Ltd | Unknown | - | - | councillor interest |
| JB FACILITIES MANAGEMENT LIMITED | Registered | NZ Limited Company | 8763206 | government contract suppliers |
| JB Johns Trust | Unknown | - | - | councillor interest |
| JB Pacific Scientists and Engineers | Unknown | - | - | government contract suppliers |
| JBSR LIMITED | Registered | NZ Limited Company | 7679857 | political donors |
| JBT Management Ltd | Unknown | - | - | councillor interest |
| JC BUILDERS 2020 LIMITED | Registered | NZ Limited Company | 7665637 | government contract suppliers |
| JC CAPITAL LIMITED | Registered | NZ Limited Company | 2196241 | government contract suppliers |
| JC CIVIL CONSTRUCTION LIMITED | Registered | NZ Limited Company | 8244735 | government contract suppliers |
| JC Plumbing Ltd | Unknown | - | - | government contract suppliers |
| JCDECAUX NEW ZEALAND TRADING LIMITED | Registered | NZ Limited Company | 829971 | government contract suppliers |
| JCI LIMITED | Removed | NZ Limited Company | 1540162 | government contract suppliers |
| JCL AIR AND ENVIRONMENT LIMITED | Registered | NZ Limited Company | 822824 | |
| JCS Online Resources | Unknown | - | - | government contract suppliers |
