| JOHN G DAVIDSON INVESTMENTS LIMITED | Registered | NZ Limited Company | 2006119 | |
| JOHN GAPES ENGINEERING LIMITED | Removed | NZ Limited Company | 1570759 | |
| JOHN GLAVEY PROGRESSIVE LIMITED | Registered | NZ Limited Company | 6029048 | government contract suppliers |
| JOHN GLOVER LIMITED | Removed | NZ Limited Company | 32112 | |
| JOHN GRANT & ASSOCIATES LIMITED | Removed | NZ Limited Company | 105116 | |
| JOHN GRANT ARCHITECTS LIMITED | Registered | NZ Limited Company | 298212 | |
| JOHN GRANT LIMITED | Removed | NZ Limited Company | 3943765 | |
| John Gregory DIVER | Registered | - | - | |
| JOHN GRIFFIN BUILDER LIMITED | Registered | NZ Limited Company | 685580 | government contract suppliers |
| JOHN GULLY MANAGEMENT SERVICES LIMITED | Removed | NZ Limited Company | 945395 | |
| JOHN HAINSWORTH (2010) LIMITED | Removed | NZ Limited Company | 2527373 | |
| JOHN HAINSWORTH (MARTON) LIMITED | Removed | NZ Limited Company | 951188 | |
| JOHN HAINSWORTH LIMITED | Removed | NZ Limited Company | 187672 | |
| JOHN HANNAH & ASSOCIATES LIMITED | Removed | NZ Limited Company | 1346527 | |
| JOHN HANNAH ORCHIDS LIMITED | Removed | NZ Limited Company | 109244 | |
| JOHN HAY CARS LTD | Removed | NZ Limited Company | 106797 | |
| JOHN HAY LIMITED | Removed | NZ Limited Company | 61320 | |
| JOHN HAYES BUILDERS LIMITED | Removed | NZ Limited Company | 1506834 | |
| JOHN HAYES FAMILY TRUSTEE LIMITED | Registered | NZ Limited Company | 7897020 | |
| JOHN HAYES PLUMBING CO 1969 LIMITED | Removed | NZ Limited Company | 190040 | |
| JOHN HAYES PLUMBING LIMITED | Removed | NZ Limited Company | 514462 | |
| JOHN HENDERSON CONSTRUCTION LIMITED | Registered | NZ Limited Company | 1154902 | government contract suppliers |
| JOHN HENRY CENTRE LIMITED | Removed | NZ Limited Company | 82932 | |
| JOHN HERBER LIMITED | Registered | NZ Limited Company | 140333 | government contract suppliers |
| JOHN HOLLAND (NZ) LIMITED | Registered | NZ Limited Company | 1841226 | government contract suppliers |
| John Hooper & Co | Unknown | - | - | charity service providers |
| JOHN HUNT CONSULTING LIMITED | Removed | NZ Limited Company | 2448893 | |
| JOHN HUNTER CONSULTANTS LIMITED | Removed | NZ Limited Company | 684516 | |
| JOHN HUNTER ULVA ISLAND TRUSTEE LIMITED | Registered | NZ Limited Company | 6784534 | |
| JOHN HYNDMAN ANAESTHETIC SERVICES LIMITED | Removed | NZ Limited Company | 1027916 | |
| JOHN J RYAN AND ASSOCIATES LIMITED | Registered | NZ Limited Company | 2313635 | |
| JOHN JUDGE LIMITED | Registered | NZ Limited Company | 1955028 | |
| John Kupa Keepa Trust | Unknown | - | - | councillor interest |
| JOHN M BEGG LIMITED | Removed | NZ Limited Company | 145246 | |
| JOHN M. RYAN MAGNETIC RESONANCE SERVICES LIMITED | Removed | NZ Limited Company | 2110790 | |
| JOHN MAXWELL ELECTRICAL LIMITED | Registered | NZ Limited Company | 638695 | |
| JOHN MCINTYRE LIMITED | Removed | NZ Limited Company | 1797398 | |
| JOHN MCINTYRE PROMOTIONS LIMITED | Registered | NZ Limited Company | 1095995 | |
| JOHN MCINTYRE RACING LIMITED | Removed | NZ Limited Company | 1836749 | |
| JOHN MILLER CONSTRUCTION LIMITED | Removed | NZ Limited Company | 194210 | |
| JOHN MILLER LIMITED | Removed | NZ Limited Company | 1872956 | |
| JOHN MILLER TRANSPORT LIMITED | Removed | NZ Limited Company | 1162541 | |
| John Morris Group Pty Ltd | Unknown | - | - | government contract suppliers |
| John Morris Scientific | Unknown | - | - | government contract suppliers |
| JOHN PETERS INVESTMENTS LIMITED | Removed | NZ Limited Company | 1174784 | |
| JOHN PETERS LIMITED | Removed | NZ Limited Company | 1024557 | |
| JOHN R MILLER & DELTA PHOTOGRAPHY LIMITED | Removed | NZ Limited Company | 92551 | |
| JOHN REYMER (1999) LIMITED | Removed | NZ Limited Company | 967825 | councillor interest |
| JOHN RIORDAN CARDIOTHORACIC SURGEON LIMITED | Registered | NZ Limited Company | 607168 | |
| JOHN ROBERTSON LIMITED | Removed | NZ Limited Company | 1201592 | |
