| ADVANCED BUILDING SERVICES LIMITED | Registered | NZ Limited Company | 2466868 | government contract suppliers |
| ADVANCED CAREER EDUCATION LIMITED | Registered | NZ Limited Company | 1969984 | government contract suppliers |
| ADVANCED DAIRY BARNS LIMITED | Registered | NZ Limited Company | 5806153 | government contract suppliers |
| ADVANCED INNOVATION LIMITED | Registered | NZ Limited Company | 5508207 | government contract suppliers |
| ADVANCED MAINTENANCE LIMITED | Registered | NZ Limited Company | 622294 | government contract suppliers |
| ADVANCED MANAGEMENT SYSTEMS LIMITED | Registered | NZ Limited Company | 105373 | government contract suppliers |
| Advanced Micro Devices | Unknown | - | - | councillor interest |
| ADVANCED PAEDIATRIC LIFE SUPPORT NEW ZEALAND INCORPORATED | Registered | Incorporated Society | - | charities nzbn sync |
| ADVANCED SAFETY LIMITED | Registered | NZ Limited Company | 6216147 | government contract suppliers |
| ADVANCED SECURITY GROUP (WGTN) LIMITED | Registered | NZ Limited Company | 2250055 | government contract suppliers |
| Advanced Security Group (WKTO) Limited | Unknown | - | - | government contract suppliers |
| Advanced Security Group Ltd | Unknown | - | - | government contract suppliers |
| ADVANCED SECURITY NZ LIMITED | Registered | NZ Limited Company | 1807131 | government contract suppliers |
| ADVANCED STORAGE PLUS LIMITED | Registered | NZ Limited Company | 6564832 | councillor interest |
| ADVANTAGE LIMITED | Registered | NZ Limited Company | 321232 | government contract suppliers |
| ADVANTAGE SOUTH LIMITED | Registered | NZ Limited Company | 3428174 | government contract suppliers |
| ADVENTIST DEVELOPMENT AND RELIEF AGENCY | Registered | Charitable Trust | - | charities nzbn sync |
| ADVENTIST EARLY CHILDHOOD CENTRE TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| ADVENTURE CAMP PIHA TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| ADVENTURE CAMP TRUST BOARD | Registered | Charitable Trust | - | charities nzbn sync |
| Adventure Development | Unknown | - | - | government contract suppliers |
| ADVENTURE FOR GOOD CHARITABLE TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| Adventure Quenches | Unknown | - | - | councillor interest |
| ADVENTURE SPECIALTIES TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| ADVENTURE WELLINGTON TRUST BOARD | Registered | Charitable Trust | - | charities nzbn sync |
| ADVICEKIWI LIMITED | Registered | NZ Limited Company | 7375616 | councillor interest |
| Advisian | Unknown | - | - | government contract suppliers |
| Advisory Committee Regional Environment | Unknown | - | - | councillor interest |
| AE HEMMINGS LIMITED | Registered | NZ Limited Company | 8133740 | government contract suppliers |
| AE MOKO LIMITED | Registered | NZ Limited Company | 1165462 | charities nzbn sync |
| AE Mortgages & Insurance | Unknown | - | - | councillor interest |
| AECOM NEW ZEALAND LIMITED | Registered | NZ Limited Company | 114583 | government contract suppliers |
| Aecor Limited ta Inspect House | Unknown | - | - | government contract suppliers |
| AEGIS GROUP LIMITED | Removed | NZ Limited Company | 1119091 | iwi subsidiaries |
| AEGIS RETIREMENT LIVING LIMITED | Registered | NZ Limited Company | 7821816 | iwi subsidiaries |
| AEON CONSTRUCTION LIMITED | In Liquidation | NZ Limited Company | 8393803 | government contract suppliers |
| AEONA TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| AERA FOUNDATION | Registered | Charitable Trust | - | charities nzbn sync |
| AERA LIMITED | Registered | NZ Limited Company | 5538547 | charities nzbn sync |
| Aerial Surveys Limited | Unknown | - | - | government contract suppliers |
| AEROSPREAD LIMITED | Registered | NZ Limited Company | 1190559 | government contract suppliers |
| AEROSPREAD TECHNOLOGIES LIMITED | Registered | NZ Limited Company | 6326148 | government contract suppliers |
| AESCULUS LIMITED | Registered | NZ Limited Company | 5872949 | councillor interest |
| AETHER PACIFIC PHARMACEUTICALS LIMITED | In Liquidation | NZ Limited Company | 7135337 | councillor interest |
| AFA'SA EDUCATION LIMITED | Registered | NZ Limited Company | 7447116 | government contract suppliers |
| AFFINITY EMPLOYER SERVICES LIMITED | Registered | NZ Limited Company | 2290511 | government contract suppliers |
| AFFINITY FUNERALS LIMITED | Removed | - | - | |
| AFFINITY GYMNASTICS ACADEMY INCORPORATED | Registered | Incorporated Society | - | charities nzbn sync |
| AFFINITY MEDICAL IMAGING LIMITED | Registered | NZ Limited Company | 8368027 | government contract suppliers |
| AFFIRM COUNCIL TRUST BOARD | Registered | Charitable Trust | - | charities nzbn sync |