| NICHOLSON CONSULTING LIMITED | Registered | NZ Limited Company | 7167733 | government contract suppliers |
| NICHOLSON FAMILY TRUSTEE (2022) LIMITED | Registered | NZ Limited Company | 8343162 | councillor interest |
| NICK HUGHES REAL ESTATE LIMITED | Registered | NZ Limited Company | 5984009 | |
| NICK PEMBERTON CONSTRUCTION LIMITED | Registered | NZ Limited Company | 3687595 | government contract suppliers |
| NICK SMITH BARBER LIMITED | Removed | NZ Limited Company | 7114734 | |
| NICK SMITH ENGINEERING LIMITED | Removed | NZ Limited Company | 6436652 | |
| NICK SMITH RACING LIMITED | Registered | NZ Limited Company | 6317758 | |
| Nicky Wagner Environmental Charitable Trust | Unknown | - | - | mp interest |
| NICNAT LIMITED | Registered | NZ Limited Company | 1480817 | government contract suppliers |
| Nicola Lawrence | Unknown | - | - | government contract suppliers |
| NICOLA MCCORMICK PHOTOGRAPHY LIMITED | Removed | NZ Limited Company | 4124399 | |
| NICOLA SMITH TRUSTEES LIMITED | Registered | NZ Limited Company | 7857673 | |
| NIGEL BROADBRIDGE CONTRACTING LIMITED | Registered | NZ Limited Company | 1590401 | government contract suppliers |
| NIGEL HARRISON LIMITED | Removed | NZ Limited Company | 2357797 | |
| NIGEL PHILPOTT PLACEMENTS LIMITED | Registered | NZ Limited Company | 1002038 | government contract suppliers |
| NIGHTCAPS CONTRACTING LIMITED | Registered | NZ Limited Company | 953888 | councillor interest |
| NIKAU CONTRACTORS LIMITED | Registered | NZ Limited Company | 108830 | government contract suppliers |
| NIKAU DAIRIES LIMITED | Registered | NZ Limited Company | 1210446 | councillor interest |
| NIKAU ESTATE TRUSTEES LIMITED | Removed | NZ Limited Company | 7911198 | kanoa recipients |
| Nikau Foundation Kāpiti Committee | Unknown | - | - | councillor interest |
| NIKAU ONE LIMITED | Registered | - | - | |
| Nikau Press | Unknown | - | - | councillor interest |
| NIKAU TRUST LIMITED | Registered | NZ Limited Company | 8270546 | councillor interest |
| Nikau Trust, BOP Focus on Dairy | Unknown | - | - | councillor interest |
| NIKE BONES INC LIMITED | Registered | NZ Limited Company | 8776829 | councillor interest |
| Nikon Australia | Unknown | - | - | government contract suppliers |
| NIMBL GROUP LIMITED | Registered | NZ Limited Company | 5576906 | government contract suppliers |
| NIMBL INC LIMITED | Registered | NZ Limited Company | 1869906 | government contract suppliers |
| NIMBUS CLOUD TRADING CO PTY LTD | Registered | Overseas ASIC Company | 8570387 | government contract suppliers |
| Nimmo-Bell & Associates | Unknown | - | - | government contract suppliers |
| Nimmo-Bell and Associates | Unknown | - | - | government contract suppliers |
| NINESTARS INFORMATION TECHNOLOGIES PRIVATE LIMITED | Unknown | - | - | government contract suppliers |
| NINIAN HOLDINGS LIMITED | Registered | - | - | |
| Nipro Australia Pty Ltd | Unknown | - | - | government contract suppliers |
| NIRVANA CONSULTANCY LIMITED | Registered | NZ Limited Company | 1243476 | government contract suppliers |
| NISS LIMITED | Registered | NZ Limited Company | 8288774 | iwi subsidiaries |
| NISSAN NEW ZEALAND LIMITED | Removed | NZ Limited Company | 96964 | government contract suppliers |
| NIWA AND NIWA LIMITED | Registered | NZ Limited Company | 6389912 | government contract suppliers |
| NJ Prendergast Family Trust | Unknown | - | - | councillor interest |
| NKE Instrumentation | Unknown | - | - | government contract suppliers |
| NLC PAYROLL LIMITED | Registered | NZ Limited Company | 2065137 | government contract suppliers |
| NLR Nelson Ltd | Unknown | - | - | government contract suppliers |
| NMIT aquaculture scholarships | Unknown | - | - | corporate donations |
| NMIT INTERNATIONAL (NZ) LIMITED | Removed | NZ Limited Company | 1645732 | corporate donations |
| No Limits Coaching Limited (trading as Altris) | Unknown | - | - | government contract suppliers |
| NO8 FIRE LIMITED | Registered | NZ Limited Company | 7710196 | government contract suppliers |
| NOA NEW ZEALAND LIMITED | Registered | NZ Limited Company | 3536432 | councillor interest |
| NOBLE CONSTRUCTION LIMITED | Registered | NZ Limited Company | 6418596 | councillor interest |
| NOBLE PM LIMITED | Registered | NZ Limited Company | 6329830 | government contract suppliers |
| NODANDJ JOINERY LIMITED | Registered | NZ Limited Company | 4163939 | government contract suppliers |