| Banks Peninsula WoolGrowers Ltd | Unknown | - | - | councillor interest |
| Banks Peninsular Water Management Zone Committee | Unknown | - | - | councillor interest |
| BANKS'S BUILDING SERVICES LIMITED | Registered | NZ Limited Company | 1220149 | government contract suppliers |
| BANQER LIMITED | Registered | NZ Limited Company | 5525528 | iwi subsidiaries |
| BANQUE STREET LIMITED | Registered | NZ Limited Company | 1923951 | councillor interest |
| Barbara Nicholas | Unknown | - | - | government contract suppliers |
| BARCLAYS NEW ZEALAND LIMITED | Removed | - | - | |
| BARCOLA LIMITED | Removed | - | - | |
| BARD AUSTRALIA PTY. LIMITED | Registered | Overseas ASIC Company | 3246828 | government contract suppliers |
| BARFOOTE CONSTRUCTION WHANGAREI LIMITED | Registered | NZ Limited Company | 1267028 | government contract suppliers |
| Barhill Chertsey Irrigation | Unknown | - | - | councillor interest |
| BARK LIMITED | Registered | NZ Limited Company | 606356 | government contract suppliers |
| BARKER & ASSOCIATES LIMITED | Registered | NZ Limited Company | 684644 | government contract suppliers |
| Barker Contractors, Waipawa | Unknown | - | - | government contract suppliers |
| Barkley Trust | Unknown | - | - | mp interest |
| Barnardos New Zealand Inc | Registered | Charitable Trust | - | government contract suppliers |
| BARNES BEAGLEY DOHERR LIMITED | Registered | NZ Limited Company | 4488218 | government contract suppliers |
| BARNON LIMITED | Removed | - | - | |
| BARNSCROFT DAIRY LIMITED | Registered | NZ Limited Company | 6792933 | councillor interest |
| BARON CONTRACTORS LIMITED | Registered | NZ Limited Company | 8270469 | government contract suppliers |
| BARRETT HOMES LIMITED | Registered | NZ Limited Company | 5796067 | government contract suppliers |
| BARRY DELL PLUMBING LIMITED | Registered | NZ Limited Company | 9337308 | government contract suppliers |
| BARRY STEWART BUILDERS LIMITED | Registered | NZ Limited Company | 1206219 | government contract suppliers |
| BARTLE DEVELOPMENTS 2000 LIMITED | Registered | NZ Limited Company | 8524907 | councillor interest |
| BARTLETT CONCRETE PLACING LIMITED | Registered | NZ Limited Company | 1235066 | government contract suppliers |
| BARTONS SOUND SYSTEMS LIMITED | Registered | NZ Limited Company | 69134 | government contract suppliers |
| BARYON TRUST LIMITED | Registered | NZ Limited Company | 7903437 | councillor interest |
| BASE CIVIL LIMITED | Registered | NZ Limited Company | 2139450 | government contract suppliers |
| BaseFit New Zealand | Unknown | - | - | councillor interest |
| BASELINE MEDICALS LIMITED | Registered | NZ Limited Company | 7052935 | government contract suppliers |
| Bashford Nicholls Charitable Trust | Unknown | - | - | councillor interest |
| BASHFORD PROJECTS LIMITED | Registered | NZ Limited Company | 9355807 | government contract suppliers |
| Basin Reserve Trust | Registered | Charitable Trust | - | councillor interest |
| Basin Reserve Trust, Wellington Regional Economic Development Agency | Unknown | - | - | councillor interest |
| BASKETBALL HAWKES BAY INCORPORATED | Registered | - | - | |
| BASTION AOTEAROA LIMITED | Registered | NZ Limited Company | 1623434 | government contract suppliers |
| BASTION SECURITY GROUP LIMITED | Registered | NZ Limited Company | 8675646 | government contract suppliers |
| BATCHELAR MCDOUGALL CONSULTING LIMITED | Registered | NZ Limited Company | 1894512 | government contract suppliers |
| BATTEN MANUFACTURERS CHRISTCHURCH LIMITED | Registered | NZ Limited Company | 8483193 | councillor interest |
| BATTEN MANUFACTURERS LIMITED | Registered | NZ Limited Company | 3020268 | councillor interest |
| Battered Womens Trust | Registered | Charitable Trust | - | government contract suppliers |
| BATY PLUMBING & DRAINAGE LIMITED | Registered | NZ Limited Company | 2191083 | government contract suppliers |
| BAXTER HEALTHCARE LIMITED | Registered | NZ Limited Company | 104549 | government contract suppliers |
| Baxter Healthcare Pty Ltd | Unknown | - | - | government contract suppliers |
| BAY AIR LIMITED | Registered | NZ Limited Company | 7693640 | government contract suppliers |
| BAY BROKERS LIMITED | Removed | NZ Limited Company | 1198642 | councillor interest |
| BAY BUILDERS 2003 LIMITED | Registered | NZ Limited Company | 1354081 | government contract suppliers |
| Bay Bush Action Charitable Trust | Unknown | - | - | mp interest |
| Bay Electrical Co Ltd | Unknown | - | - | government contract suppliers |
| BAY ENGINEERING SOLUTIONS LIMITED | Registered | NZ Limited Company | 5527828 | government contract suppliers |
