| BRIDGESTONE NEW ZEALAND LIMITED | Registered | NZ Limited Company | 74645 | government contract suppliers |
| Bridgewater Day Surgery | Unknown | - | - | government contract suppliers |
| Bridgewater Surgical Services Limited t/a Bridgewater Day Surgery | Unknown | - | - | government contract suppliers |
| BRIDGLANDHILL LIMITED | Registered | NZ Limited Company | 5031380 | government contract suppliers |
| BRIEN ELECTRICAL LIMITED | Registered | NZ Limited Company | 39885 | government contract suppliers |
| Bright Sunday | Registered | NZ Limited Company | - | government contract suppliers |
| Bright Sunday - 4 Parker Inc (4PI) Limited | Unknown | - | - | government contract suppliers |
| Brightcove Inc. | Unknown | - | - | government contract suppliers |
| BRIGHTER DAYS LIMITED | Registered | NZ Limited Company | 6300869 | government contract suppliers |
| BRIGHTON HOLDINGS LIMITED | Removed | NZ Limited Company | 1726247 | government contract suppliers |
| BRIGHTSTAR DESIGN LIMITED | Registered | NZ Limited Company | 2425290 | government contract suppliers |
| BRILLIANT ASSESSMENTS LIMITED | Registered | NZ Limited Company | 1128263 | government contract suppliers |
| BRINLINN FARM PROPERTY LIMITED | Registered | NZ Limited Company | 8261537 | mp interest |
| BRISTOL PROPERTIES LIMITED | Removed | - | - | |
| Bristol Properties Limited Partnership | Registered | Limited Partnership (NZ) | - | mp interest |
| Brittany Mauger Inheritance Trust | Unknown | - | - | councillor interest |
| Brittany Mauger Inhertiance Trust | Unknown | - | - | councillor interest |
| Brittons Housemovers Limited | Unknown | - | - | government contract suppliers |
| BROAD ARCHITECTURE LIMITED | Registered | NZ Limited Company | 1236512 | councillor interest |
| Broad Calvert Business Trust | Unknown | - | - | councillor interest |
| Broad Calvert Trust | Unknown | - | - | councillor interest |
| BROAD ELECTRICAL SERVICES LIMITED | Registered | NZ Limited Company | 7712079 | government contract suppliers |
| BROADWAY CONSTRUCTION COMPANY LIMITED | Registered | NZ Limited Company | 1236504 | councillor interest |
| BROADWAY FARM LIMITED | Registered | NZ Limited Company | 1835304 | councillor interest |
| Broleys Holdings Ltd; Kingfish Ltd | Unknown | - | - | councillor interest |
| Brook Waimārama Sanctuary Trust | Registered | Charitable Trust | - | councillor interest |
| BROOKFIELDS LAWYERS LIMITED | Registered | NZ Limited Company | 4499598 | government contract suppliers |
| Brooking Jackson Business Trust | Unknown | - | - | mp interest |
| Brooking Jackson Private Trust | Unknown | - | - | mp interest |
| BROOMFIELD AUTOMOTIVE LIMITED | Registered | NZ Limited Company | 7924257 | councillor interest |
| Bros for Change Charitable Trust | Registered | Charitable Trust | - | kanoa recipients |
| BROSNAN CONSTRUCTION CANTERBURY LIMITED | Registered | NZ Limited Company | 3227547 | government contract suppliers |
| BROSNAN CONSTRUCTION LIMITED | Registered | NZ Limited Company | 3056847 | government contract suppliers |
| BROSNAN LIMITED | Registered | NZ Limited Company | 5424801 | government contract suppliers |
| BROTHER INTERNATIONAL (NZ) LIMITED | Registered | NZ Limited Company | 13243 | government contract suppliers |
| Brother NZ Limitted | Unknown | - | - | government contract suppliers |
| Brotherhood of St Laurence | Unknown | - | - | corporate donations |
| BROUGHTON TRUSTEE LIMITED | Registered | NZ Limited Company | 8554657 | councillor interest |
| BROWN & COMPANY PLANNING GROUP LIMITED | Registered | NZ Limited Company | 1112535 | government contract suppliers |
| BROWN ACRES FARM LIMITED | Registered | NZ Limited Company | 8126059 | government contract suppliers |
| Brown Bros (NZ) Ltd | Unknown | - | - | government contract suppliers |
| BRP AUSTRALIA PTY LTD | Registered | Overseas ASIC Company | 1162039 | government contract suppliers |
| BRS Shipbrokers | Unknown | - | - | government contract suppliers |
| BRUBAR LIMITED | Registered | NZ Limited Company | 5987028 | government contract suppliers |
| Bruce and Anne Thomas Trust | Unknown | - | - | councillor interest |
| Bruce Ensor Builders | Unknown | - | - | government contract suppliers |
| BRUCE GORDON CONTRACTING LIMITED | Registered | NZ Limited Company | 570256 | councillor interest |
| Bruce Gordon Contracting Ltd, E B Gordon Ltd | Unknown | - | - | councillor interest |
| Bruce Grant Youth Trust | Registered | Charitable Trust | - | councillor interest |
| Bruce Mincham Family Trust | Unknown | - | - | councillor interest |
