| C J INDUSTRIES LIMITED | Registered | NZ Limited Company | 1655190 | government contract suppliers |
| C J W & S Bowyer Family Trust | Unknown | - | - | councillor interest |
| C K M TRUSTEE SERVICES LIMITED | Registered | NZ Limited Company | 3977558 | councillor interest |
| C R TAYLOR GISBORNE LIMITED | Registered | NZ Limited Company | 151266 | government contract suppliers |
| C T Gardner Family Trust | Unknown | - | - | councillor interest |
| C VIEWS LIMITED | Registered | NZ Limited Company | 1071953 | councillor interest |
| C.L.Blackwell LTD | Unknown | - | - | councillor interest |
| C.W. Withers Limited t/a Withers Coachlines | Unknown | - | - | government contract suppliers |
| C&C Projects Limited | Unknown | - | - | government contract suppliers |
| C2 CONTRACTING LIMITED | Registered | NZ Limited Company | 7859758 | government contract suppliers |
| C3 CONSTRUCTION LIMITED | Registered | NZ Limited Company | 6032327 | government contract suppliers |
| CA and JC Langford | Unknown | - | - | councillor interest |
| CA Technology Pty Ltd, trading as CAMMS | Unknown | - | - | government contract suppliers |
| CABBAGE TREE TRUSTEE COMPANY LIMITED | Registered | NZ Limited Company | 5712950 | councillor interest |
| CABLE AND WIRELESS (NZ) LIMITED | Registered | NZ Limited Company | 3012162 | government contract suppliers |
| Cablenet | Removed | NZ Limited Company | - | government contract suppliers |
| CABLEPRICE (NZ) LIMITED | Registered | NZ Limited Company | 811263 | government contract suppliers |
| Caccia Birch Community Trust | Unknown | - | - | councillor interest |
| CAE NEW ZEALAND PTY LIMITED | Registered | NZ Limited Company | 5059941 | government contract suppliers |
| CAIXABANK, S.A. | Unknown | - | - | government contract suppliers |
| CAKE COMMERCIAL SERVICES LIMITED | Registered | NZ Limited Company | 1402082 | government contract suppliers |
| Calder Developments Ltd | Registered | NZ Limited Company | - | government contract suppliers |
| CALDER STEWART CONSTRUCTION LIMITED | Registered | NZ Limited Company | 5502444 | government contract suppliers |
| CALDER STEWART ENERGY LIMITED | Registered | NZ Limited Company | 5601565 | government contract suppliers |
| CALDWELL CONTRACTING LIMITED | Removed | - | - | |
| CALECT ELECTRICAL LIMITED | Registered | NZ Limited Company | 1514367 | councillor interest |
| CALEDONIAN MARINE AND ENGINEERING SERVICES LIMITED | Registered | - | - | |
| CALEYS NZ LP | Registered | Limited Partnership (NZ) | - | government contract suppliers |
| CALIBRATION SERVICES (NZ) LIMITED | Registered | NZ Limited Company | 1639631 | government contract suppliers |
| CALIBRE APIARIES LIMITED | Removed | NZ Limited Company | 5713427 | government contract suppliers |
| Calibre Consulting Ltd | Unknown | - | - | government contract suppliers |
| CALITEC HOT WATER SYSTEMS LIMITED | Registered | NZ Limited Company | 6239203 | government contract suppliers |
| CALLANDER ELECTRICS LIMITED | Registered | NZ Limited Company | 471391 | government contract suppliers |
| CALLIDITAS PROFESSIONAL SERVICES LIMITED | Removed | NZ Limited Company | 2283514 | councillor interest |
| CALLUM B CONTRACTING LIMITED | Registered | NZ Limited Company | 8201024 | government contract suppliers |
| CALM MINDS PSYCHOLOGY LIMITED | Registered | NZ Limited Company | 8358289 | government contract suppliers |
| CAMA PRODUCTS LIMITED | Registered | NZ Limited Company | 2437860 | government contract suppliers |
| Cambrian Trust via Cambrian Trustee Ltd, Philip Thornton | Unknown | - | - | political donors |
| Cambridge Autumn Festival Trust | Registered | Charitable Trust | - | councillor interest |
| CAMBRIDGE CLOTHING LIMITED | Registered | - | - | |
| CAMBRIDGE COMMUNITY HOUSE TRUST | Registered | Charitable Trust | - | government contract suppliers |
| Cambridge Construction Company Ltd | Unknown | - | - | government contract suppliers |
| Cambridge Economic Policy Associates Pty Ltd | Unknown | - | - | government contract suppliers |
| CAMBRIDGE EXCAVATORS LIMITED | Registered | NZ Limited Company | 4332458 | government contract suppliers |
| CAMBRIDGE EXCAVATORS LIMITED T/A Camex Civil | Unknown | - | - | government contract suppliers |
| CAMBRIDGE FINANCE LIMITED | Registered | - | - | |
| Cambridge Fusion | Unknown | - | - | councillor interest |
| Cambridge Grey Power | Registered | Incorporated Society | - | councillor interest |
| CAMBRIDGE INVESTMENT TRUST | Unknown | - | - | political donors |
| CAMBRIDGE JOCKEY CLUB LIMITED | Registered | NZ Limited Company | 8164178 | kanoa recipients |