| BP PLC | Unknown | - | - | councillor interest |
| BPL LIMITED | Removed | NZ Limited Company | 1801491 | iwi subsidiaries |
| BR Flooring | Unknown | - | - | government contract suppliers |
| BRACKENRIDGE SERVICES LIMITED | Registered | NZ Limited Company | 930643 | government contract suppliers |
| BRAD ROWE LIMITED | Registered | NZ Limited Company | 8227416 | government contract suppliers |
| BRADFORD BUILDING LIMITED | Registered | NZ Limited Company | 901473 | government contract suppliers |
| BRADLEY PROJECT MANAGEMENT (BPM) LIMITED | Registered | NZ Limited Company | 6096948 | government contract suppliers |
| Braehead Grange Trust | Unknown | - | - | mp interest |
| BRAEMAR HOSPITAL LIMITED | Registered | NZ Limited Company | 1073938 | government contract suppliers |
| BRAGG BUILDING & DESIGN LIMITED | Registered | NZ Limited Company | 5461061 | government contract suppliers |
| BRAIDEN INTERNATIONAL LIMITED | Registered | NZ Limited Company | 1244232 | government contract suppliers |
| Brain Injury Waikato | Registered | Incorporated Society | - | councillor interest |
| BRAND TORQUE LIMITED | Registered | NZ Limited Company | 7084333 | government contract suppliers |
| BRANDHEART LIMITED | Registered | NZ Limited Company | 1580659 | government contract suppliers |
| Brandon Hall & La Vallette Trust | Unknown | - | - | mp interest |
| BRANDPARTNERS LIMITED | Registered | NZ Limited Company | 459744 | government contract suppliers |
| BRANDT TRACTOR LIMITED | Registered | NZ Limited Company | 2322970 | government contract suppliers |
| BRAUMS Pty Ltd | Unknown | - | - | government contract suppliers |
| BRAVO GEOSPATIAL LIMITED | Registered | NZ Limited Company | 9396942 | government contract suppliers |
| BravoSolution APAC Pty. Ltd. dba JAGGAER | Unknown | - | - | government contract suppliers |
| BRAW RESEARCH LIMITED | Removed | NZ Limited Company | 7859073 | government contract suppliers |
| BRAZIER SCAFFOLDING LIMITED | Registered | NZ Limited Company | 157129 | kanoa recipientsgovernment contract suppliers |
| Bream Head Conservation Trust | Registered | Charitable Trust | - | councillor interest |
| Bream Tail Residents Association | Registered | Incorporated Society | - | councillor interest |
| Breathing Space Charitable Trust | Registered | Charitable Trust | - | government contract suppliers |
| BRECKON DRAINAGE & CIVIL LIMITED | In Liquidation | NZ Limited Company | 8243982 | government contract suppliers |
| Breens Construction | Unknown | - | - | government contract suppliers |
| BREIN ELECTRICAL | Unknown | - | - | government contract suppliers |
| BREMCA AUTOMATION LIMITED | Registered | NZ Limited Company | 1813792 | government contract suppliers |
| BREMCA INDUSTRIES LIMITED | Registered | NZ Limited Company | 1612203 | government contract suppliers |
| BREMWORTH CARPETS AND RUGS LIMITED | Registered | NZ Limited Company | 202621 | government contract suppliers |
| BREMWORTH LIMITED | Registered | - | - | |
| BRENCHLEY TRUSTEE SERVICES LIMITED | Removed | NZ Limited Company | 1011733 | councillor interest |
| BRENDAN BOYLE LIMITED | Registered | NZ Limited Company | 7564257 | government contract suppliers |
| BRENSSELL FLOORING GROUP LIMITED | Registered | NZ Limited Company | 8263463 | government contract suppliers |
| Brent Pullar Building Ltd | Unknown | - | - | government contract suppliers |
| BRENT WEATHERALL JEWELLERS LIMITED | Registered | - | - | |
| Brett Maxwell | Unknown | - | - | government contract suppliers |
| Brewer Davidson Architecture | Unknown | - | - | government contract suppliers |
| BREWER DAVIDSON LIMITED | Registered | NZ Limited Company | 3728076 | government contract suppliers |
| BREWWELL LIMITED | Registered | NZ Limited Company | 3329534 | government contract suppliers |
| Brewwell Limited t/a Garage Project | Unknown | - | - | government contract suppliers |
| Brian Fredric Family Trust | Unknown | - | - | councillor interest |
| BRIAN PERRY CIVIL LIMITED | Registered | NZ Limited Company | 8060538 | government contract suppliers |
| Brian Perry Civil Ltd t/a PipeWorks | Unknown | - | - | government contract suppliers |
| BRIAN'S LANE LIMITED | Registered | NZ Limited Company | 6727273 | councillor interest |
| BRIAR PATCH NEW ZEALAND LIMITED | Registered | NZ Limited Company | 1806324 | councillor interest |
| Brickhouse Technologies | Unknown | - | - | government contract suppliers |
| BRIDGE IT NZ LIMITED | Registered | NZ Limited Company | 2153313 | government contract suppliers |
| Bridge South Brighton Trust | Registered | Charitable Trust | - | councillor interest |
