| Anthony Gough Trust | Unknown | - | - | councillor interest |
| ANTHONY HARPER LEGAL SERVICES LIMITED | Removed | NZ Limited Company | 630098 | government contract suppliers |
| ANTHROPOSOPHICAL SOCIETY IN NEW ZEALAND | Registered | Charitable Trust | - | charities nzbn sync |
| Anti - P Ministry | Registered | Trust | - | charities nzbn sync |
| ANTIPODES TIMBER NZ LTD. | Unknown | - | - | political donors |
| ANTIPODES TRUST GROUP LIMITED | Registered | NZ Limited Company | 1204404 | mp interest |
| ANTON KITIONE CARE TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| Anton Paar New Zealand Limited | Unknown | - | - | government contract suppliers |
| Antony Gough Trust | Unknown | - | - | councillor interest |
| ANU HEALTHCARE LIMITED | Registered | NZ Limited Company | 4690879 | government contract suppliers |
| ANXIETY NEW ZEALAND TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| ANZ BANK NEW ZEALAND LIMITED | Registered | NZ Limited Company | 35976 | councillor interest |
| ANZ CUSTODIAL SERVICES NEW ZEALAND LIMITED | Registered | NZ Limited Company | 1566053 | custodian fund mappings |
| ANZ ENVIRO PTY LTD | Removed | Overseas ASIC Company | 6093307 | government contract suppliers |
| ANZ INVESTMENT SERVICES (NEW ZEALAND) LIMITED | Registered | - | - | |
| ANZ LIMITED | Registered | NZ Limited Company | 2149096 | government contract suppliers |
| ANZ NEW ZEALAND INVESTMENTS LIMITED | Registered | NZ Limited Company | 424261 | fund managers |
| ANZAC Day and Armistice Day Organizing Committee | Unknown | - | - | councillor interest |
| ANZEL- Aquapipe NZ Environmental Linders Ltd | Unknown | - | - | government contract suppliers |
| ANZSOG | Unknown | - | - | government contract suppliers |
| AOFRIO LIMITED | Registered | NZ Limited Company | 311055 | councillor interest |
| AOGA AMATA PACIFIC ISLAND CHURCH AVONDALE TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| AOGA FAA-SAMOA SOCIETY INCORPORATED | Registered | Incorporated Society | - | charities nzbn sync |
| AOKAUTERE INTERDENOMINATIONAL COMMUNITY CHRISTIAN CHURCH TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| AON NEW ZEALAND | Registered | NZ Unlimited Company | 704249 | government contract suppliers |
| Aon New Zealand (Trading as WorkAON) | Unknown | - | - | government contract suppliers |
| AON Securities | Unknown | - | - | government contract suppliers |
| Aon Valuation | Unknown | - | - | government contract suppliers |
| Aongatete Forest Restoration Trust | Registered | Charitable Trust | - | councillor interest |
| Aongatete Forest Restoration Trust, Rotary Club of Katikati | Unknown | - | - | councillor interest |
| AONGATETE OUTDOOR EDUCATION CHARITABLE TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| AOPA NZ CHARITABLE TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| AORAKI CIVIL LIMITED | Registered | NZ Limited Company | 1051937 | government contract suppliers |
| AORAKI COFFEE LIMITED | Registered | NZ Limited Company | 6434932 | government contract suppliers |
| AORAKI COMMUNITY EDUCATION TRUST BOARD | Registered | Charitable Trust | - | charities nzbn sync |
| AORAKI CONSTRUCTION LIMITED | Registered | NZ Limited Company | 7315638 | government contract suppliers |
| AORAKI ENVIRONMENTAL CONSULTANCY LIMITED | Registered | NZ Limited Company | 6077007 | charities nzbn sync |
| AORAKI FOUNDATION | Registered | Charitable Trust | - | charities nzbn sync |
| Aoraki Mackenzie International Dark Sky Reserve | Registered | Special Body | - | councillor interest |
| AORAKI PLAYFIELD LIMITED | Registered | NZ Limited Company | 8241125 | government contract suppliers |
| Aorangi Homes 1995LTD | Unknown | - | - | government contract suppliers |
| AORANGI RESTORATION TRUST BOARD | Registered | Charitable Trust | - | charities nzbn sync |
| Aorangi Whanau Trust | Unknown | - | - | kanoa recipients |
| AORERE COLLEGE FOUNDATION | Registered | Charitable Trust | - | charities nzbn sync |
| AORERE PUBLIC HALL ASSOCIATION (INCORPORATED) | Registered | Incorporated Society | - | charities nzbn sync |
| AOTAHI LIMITED | Registered | NZ Limited Company | 1571048 | kanoa recipientsgovernment contract suppliers |
| AOTAL ASIA PACIFIC LIMITED | Registered | NZ Limited Company | 5453746 | government contract suppliers |
| AOTEA ARB LIMITED | Registered | NZ Limited Company | 9054333 | government contract suppliers |
| AOTEA ARTS AND HISTORY VILLAGE TRUST | Registered | Charitable Trust | - | charities nzbn sync |
| AOTEA COLLEGE ASSOCIATION INCORPORATED | Removed | Incorporated Society | - | charities nzbn sync |