| JKB & J TAYLOR TRUST | Unknown | - | - | councillor interest |
| JKLM TRUSTEE SERVICES LIMITED | Registered | NZ Limited Company | 1159528 | councillor interest |
| JL & JL HOLDINGS LIMITED | Registered | NZ Limited Company | 2090907 | government contract suppliers |
| JL FARMS LIMITED | Removed | NZ Limited Company | 1131759 | |
| JLL Technologies | Unknown | - | - | government contract suppliers |
| JM & KE Naylor Family Trust | Unknown | - | - | councillor interest |
| JM & SD Trust | Unknown | - | - | councillor interest |
| JM Fairey Trust | Unknown | - | - | mp interest |
| JMB BUILDING & CONSTRUCTION LIMITED | Registered | NZ Limited Company | 2060349 | government contract suppliers |
| JMD RAILTECH LIMITED | Registered | NZ Limited Company | 7869736 | government contract suppliers |
| JMI CONSTRUCTION LIMITED | Removed | NZ Limited Company | 478961 | government contract suppliers |
| JMI WEALTH FUND NO.1 (GP) LIMITED | Registered | NZ Limited Company | 8383397 | government contract suppliers |
| JMP CONSULTING LIMITED | Registered | NZ Limited Company | 4049158 | government contract suppliers |
| JN & SR Greaney Family Trust | Unknown | - | - | councillor interest |
| JNP AVIATION LIMITED | Registered | NZ Limited Company | 5559186 | government contract suppliers |
| JO AND CRAIG LIMITED | Removed | NZ Limited Company | 2073444 | |
| JOANDRA TRUSTEE LIMITED | Registered | NZ Limited Company | 8259874 | councillor interest |
| Joblin-Mills (2022) Family Trust | Unknown | - | - | councillor interest |
| Joblin-Mills Family Trust | Unknown | - | - | councillor interest |
| JOBS FOR IMPACT LIMITED | Registered | NZ Limited Company | 8874753 | government contract suppliers |
| JOBS FOR MUMS LIMITED | Removed | NZ Limited Company | 2103107 | government contract suppliers |
| JOCK MARTIN MANAGEMENT LIMITED | Registered | NZ Limited Company | 4735740 | |
| Joe Aspell Trust | Registered | Charitable Trust | - | councillor interest |
| JOE CARROLL MORTGAGES AND INSURANCES LIMITED | Removed | NZ Limited Company | 1033348 | |
| Joel Henton | Registered | Sole Trader | - | government contract suppliers |
| JOHN A RYAN & ASSOCIATES LIMITED | Removed | NZ Limited Company | 3463555 | |
| JOHN ALLEN & ASSOCIATES LIMITED | Removed | NZ Limited Company | 336440 | |
| JOHN ALLEN CONTRACTING LIMITED | Registered | NZ Limited Company | 6629913 | |
| John Anderson Maintenance Limited T/A JAM Ltd | Unknown | - | - | government contract suppliers |
| JOHN AUSTIN LIMITED | Registered | NZ Limited Company | 199153 | government contract suppliers |
| JOHN BERRY - HUNTING CONSULTANT LIMITED | Removed | NZ Limited Company | 1608033 | |
| John Blackwell Family Trust | Unknown | - | - | councillor interest |
| JOHN BUCHANAN & SONS WELLINGTON LIMITED | Removed | NZ Limited Company | 6161 | |
| JOHN CAMERON CONSULTING LIMITED | Removed | NZ Limited Company | 32654 | |
| JOHN CHAPMAN CONSULTING LIMITED | Registered | NZ Limited Company | 6578652 | |
| JOHN CHAPMAN CONTRACTORS LIMITED | Removed | NZ Limited Company | 958566 | |
| JOHN CHAPMAN LIMITED | Removed | NZ Limited Company | 75056 | |
| JOHN CLEMENTS LIMITED | Removed | NZ Limited Company | 5483681 | |
| JOHN COCHRANE COMMERCIAL FURNITURE LIMITED | Removed | NZ Limited Company | 918963 | government contract suppliers |
| JOHN DAVIDSON LIMITED | Registered | NZ Limited Company | 2431913 | |
| JOHN DENNISON AUTO SERVICES LIMITED | Registered | NZ Limited Company | 412536 | |
| JOHN DUNCAN DEER LIMITED | Removed | NZ Limited Company | 1169080 | |
| JOHN DUNCAN ENTERPRISES LIMITED | Removed | NZ Limited Company | 1846985 | |
| JOHN DUNCAN LIMITED | Registered | NZ Limited Company | 3886498 | |
| JOHN E. HAY AND ASSOCIATES LIMITED | Removed | NZ Limited Company | 1125637 | |
| John Ewen Family Trust | Unknown | - | - | councillor interest |
| JOHN FAUL LIMITED | Registered | NZ Limited Company | 2446212 | government contract suppliers |
| JOHN FILLMORE CONTRACTING LIMITED | Registered | NZ Limited Company | 82440 | government contract suppliers |
| JOHN FRANKLIN HUNT ASSOCIATES LIMITED | Removed | NZ Limited Company | 261634 | |
| JOHN FUNNELL CURTAIN CONTRACTS LIMITED | Removed | NZ Limited Company | 94388 | |
