| BEGIN DISTILLING LIMITED | Registered | NZ Limited Company | 5807587 | kanoa recipients |
| Begovich Trust | Unknown | - | - | councillor interest |
| BELGRAVIA CAPITAL PARTNERS NEW ZEALAND LIMITED | Removed | NZ Limited Company | 1325145 | government contract suppliers |
| BELICH TRUSTEE LIMITED | Registered | NZ Limited Company | 7172873 | mp interest |
| Belk Family Trust (US) | Unknown | - | - | councillor interest |
| BELL & HODGSON FARMS LIMITED | Removed | NZ Limited Company | 195380 | councillor interest |
| BELL GULLY SERVICES LIMITED | Registered | NZ Limited Company | 71954 | government contract suppliers |
| Bellarace Consulting Limited (trading as Te Puna Farm) | Unknown | - | - | kanoa recipients |
| BELLBIRD BAKED GOODS LIMITED | Registered | NZ Limited Company | 6809738 | government contract suppliers |
| Bellbird Computers | Unknown | - | - | councillor interest |
| BELLCON LIMITED | Registered | NZ Limited Company | 6685593 | government contract suppliers |
| Bellfern Family Trust | Unknown | - | - | councillor interest |
| BELLINGHAM MARINE NEW ZEALAND LIMITED | Registered | NZ Limited Company | 917022 | government contract suppliers |
| BELLS PRODUCE LIMITED | Registered | NZ Limited Company | 669238 | iwi subsidiaries |
| BELONG AOTEAROA | Unknown | - | - | government contract suppliers |
| Below Zero Ltd T/A Swittch | Unknown | - | - | government contract suppliers |
| BEN VISTA HOLDINGS LIMITED | Removed | NZ Limited Company | 135955 | councillor interest |
| Benchmark Construction Ltd | Unknown | - | - | government contract suppliers |
| BENDAMERE HOUSE 2006 LIMITED | Registered | NZ Limited Company | 1857799 | councillor interest |
| BENITA CAIRNS LIMITED | Registered | - | - | |
| BENMORE CONSULTING LIMITED | Registered | NZ Limited Company | 5625265 | government contract suppliers |
| BENNETTO TRUSTEE LIMITED | Registered | NZ Limited Company | 8125625 | councillor interest |
| Benneydale Hall Inc | Registered | Incorporated Society | - | councillor interest |
| BENTLEY & CO LIMITED | Registered | NZ Limited Company | 861921 | government contract suppliers |
| Bereachah Heights Tust Inc | Unknown | - | - | councillor interest |
| BERETTA NEW ZEALAND LIMITED | Registered | NZ Limited Company | 1638372 | government contract suppliers |
| BERKETT EARTHMOVERS 2012 LIMITED | Registered | NZ Limited Company | 3781796 | government contract suppliers |
| BERKETT EARTHMOVERS LIMITED | Registered | NZ Limited Company | 1516959 | government contract suppliers |
| Berkshire Hathaway Incorporated Class B | Unknown | - | - | mp interest |
| BERL DEVELOPMENTS LIMITED | Removed | NZ Limited Company | 19589 | government contract suppliers |
| Berry Simons Environmental Law | Unknown | - | - | government contract suppliers |
| BERRY STREET INVESTMENTS LIMITED | Removed | NZ Limited Company | 1886735 | corporate donations |
| BERTRAM TRUSTEE LIMITED | Registered | NZ Limited Company | 8168667 | councillor interest |
| BESAFE TRAINING LIMITED | Registered | NZ Limited Company | 915032 | government contract suppliers |
| BESIX WATPAC NZ LIMITED | Registered | NZ Limited Company | 8168925 | government contract suppliers |
| BESPOKE LANDSCAPE ARCHITECTS LIMITED | Registered | NZ Limited Company | 1745522 | government contract suppliers |
| BEST & WEST (2004) LIMITED | Registered | NZ Limited Company | 1556085 | government contract suppliers |
| BEST CARE (WHAKAPAI HAUORA) CHARITABLE TRUST | Registered | Charitable Trust | - | government contract suppliers |
| BEST CARE LIMITED | Registered | NZ Limited Company | 1033100 | government contract suppliers |
| BEST START EDUCARE LIMITED | Registered | - | - | |
| Beth Tupare-Katene | Unknown | - | - | government contract suppliers |
| BETHEL CONSULTANTS LIMITED | Registered | NZ Limited Company | 7191173 | government contract suppliers |
| Bethlehem Coachlines | Unknown | - | - | government contract suppliers |
| BETTA NZ LIMITED | Registered | NZ Limited Company | 4638879 | government contract suppliers |
| BETTER BUSINESS BY DESIGN LIMITED | Registered | NZ Limited Company | 891275 | government contract suppliers |
| BETTER NATURE LIMITED | Registered | NZ Limited Company | 922801 | government contract suppliers |
| BETTER REHABILITATION NZ LIMITED | Registered | NZ Limited Company | 8195058 | government contract suppliers |
| BEYOND BLUE LIMITED | Registered | NZ Limited Company | 8433461 | corporate donations |
| BEYOND EXCELLENCE SERVICES LIMITED | Registered | NZ Limited Company | 8195271 | government contract suppliers |
| BEYOND SERVICES LIMITED | Registered | NZ Limited Company | 1605422 | government contract suppliers |
