| Arthurs Point Community Association | Registered | Incorporated Society | - | councillor interest |
| ARTO ARCHITECTS LIMITED | Removed | NZ Limited Company | 6887173 | government contract suppliers |
| Arts Centre Melbourne | Unknown | - | - | corporate donations |
| Arts Murihiku | Registered | Charitable Trust | - | councillor interest |
| Arts on Tour New Zealand | Registered | Charitable Trust | - | councillor interest |
| Arturo Trust | Unknown | - | - | councillor interest |
| Aruba - a Hewlett-Packard Enterprise Company | Unknown | - | - | government contract suppliers |
| ARUP NEW ZEALAND LIMITED | Registered | NZ Limited Company | 830254 | government contract suppliers |
| AS1 LIMITED | Registered | NZ Limited Company | 1553951 | government contract suppliers |
| ASALEO CARE LIMITED | Registered | NZ Limited Company | 3674253 | government contract suppliers |
| ASAP CONTRACTING LIMITED | Registered | NZ Limited Company | 2444009 | government contract suppliers |
| ASB BANK LIMITED | Registered | NZ Limited Company | 398445 | government contract suppliers |
| ASB Investment Management | Unknown | - | - | fund managers |
| ASBESTOS REMOVAL TECHNICIANS LIMITED | Registered | NZ Limited Company | 6043938 | government contract suppliers |
| ASBESTOS SOLUTIONS LIMITED | Removed | NZ Limited Company | 1500255 | government contract suppliers |
| ASBESTOS SURVEYS & MONITORING NZ LIMITED | Registered | NZ Limited Company | 6417712 | government contract suppliers |
| ASBUILT LIMITED | Removed | NZ Limited Company | 1291757 | government contract suppliers |
| ASC ARCHITECTS LIMITED | Registered | NZ Limited Company | 113208 | government contract suppliers |
| Ashburton Safer Community Council Trust | Registered | Charitable Trust | - | government contract suppliers |
| ASHBY PROPERTY MANAGEMENT LIMITED | Registered | NZ Limited Company | 4927279 | government contract suppliers |
| ASHER INC LIMITED | Registered | NZ Limited Company | 2191682 | councillor interest |
| Ashley Gorge Advisory Group | Unknown | - | - | councillor interest |
| Ashley Inc, Marlika Inc, Waimanita Named Trust, Lake Tayos Bros Trust, Rotosaia Trust | Unknown | - | - | councillor interest |
| Ashley River Care Group | Unknown | - | - | councillor interest |
| Ashley Rubenstein | Unknown | - | - | government contract suppliers |
| ASHTON MITCHELL LIMITED | Registered | NZ Limited Company | 5015020 | government contract suppliers |
| ASI SOLUTIONS LIMITED | Registered | NZ Limited Company | 4722339 | government contract suppliers |
| Asia New Zealand Foundation | Registered | Central Government | - | councillor interest |
| Asia Pacific Healthcare Group | Unknown | - | - | government contract suppliers |
| Asia-Pacific Cultural Education Trust | Unknown | - | - | mp interest |
| ASJ Property Consultancy | Unknown | - | - | government contract suppliers |
| AskPro Ltd | Unknown | - | - | councillor interest |
| ASKUS IQP COMPLIANCE SPECIALISTS LIMITED | Registered | NZ Limited Company | 9323119 | government contract suppliers |
| ASKYOURTEAM NZ LIMITED | Registered | NZ Limited Company | 5124381 | government contract suppliers |
| ASONA LIMITED | Registered | NZ Limited Company | 1291829 | government contract suppliers |
| ASPEC CONSTRUCTION LIMITED | Registered | NZ Limited Company | 315647 | government contract suppliers |
| Aspect Charitable Trust | Unknown | - | - | councillor interest |
| ASPECT FURNITURE HOLDINGS LIMITED | Registered | NZ Limited Company | 9316885 | government contract suppliers |
| ASPECT FURNITURE SYSTEMS LIMITED | Registered | NZ Limited Company | 1795088 | government contract suppliers |
| ASPEN PHARMACARE AUSTRALIA PTY LIMITED | Registered | Overseas ASIC Company | 8147980 | government contract suppliers |
| ASPEQ LIMITED | Registered | NZ Limited Company | 1166910 | government contract suppliers |
| ASPHALT & GENERAL CO LIMITED | Registered | NZ Limited Company | 201732 | government contract suppliers |
| ASPHALT AND CONSTRUCTION HOLDINGS LIMITED | Registered | NZ Limited Company | 8734546 | government contract suppliers |
| Aspire-Community Support | Registered | Charitable Trust | - | government contract suppliers |
| ASPIRING SAFETY LIMITED | Registered | NZ Limited Company | 2088355 | government contract suppliers |
| ASPLUNDH | Registered | NZ Unlimited Company | 473324 | government contract suppliers |
| ASSC ELECTRICAL AND ENGINEERING LIMITED | Registered | NZ Limited Company | 1975667 | government contract suppliers |
| ASSESSIT LIMITED | Registered | NZ Limited Company | 5734639 | government contract suppliers |
| ASSESSMENT PROVIDERS TARANAKI LIMITED | Registered | NZ Limited Company | 1013033 | government contract suppliers |
| ASSET CONSTRUCTION LIMITED | Registered | NZ Limited Company | 5861255 | government contract suppliers |
