| Christchurch Methodist Central Mission | Registered | Charitable Trust | - | government contract suppliers |
| Christchurch Multicultural Council | Registered | Incorporated Society | - | councillor interest |
| CHRISTCHURCH NURSING BUREAU LIMITED | Registered | NZ Limited Company | 640182 | government contract suppliers |
| CHRISTCHURCH PHO LIMITED | Registered | NZ Limited Company | 1287468 | councillor interest |
| Christchurch Primary Health Organisation LTD | Unknown | - | - | councillor interest |
| Christchurch Primary Helath Organisation Trust | Unknown | - | - | councillor interest |
| Christchurch Resettlement Services | Registered | Incorporated Society | - | councillor interest |
| Christchurch Stadium Trust | Removed | Charitable Trust | - | mp interest |
| Christchurch-Kurashiki Sister City Committee | Unknown | - | - | councillor interest |
| Christchurch-UK Sister City Committee | Unknown | - | - | councillor interest |
| CHRISTCHURCHNZ HOLDINGS LIMITED | Registered | NZ Limited Company | 3809976 | councillor interest |
| CHRISTCHURCHNZ LIMITED | Registered | NZ Limited Company | 6277728 | councillor interest |
| Christian Centre Charitable Trust | Registered | Charitable Trust | - | councillor interest |
| Christine Anne LAYCOCK | Registered | Sole Trader | - | government contract suppliers |
| Christine Menzies Family Trust | Unknown | - | - | councillor interest |
| CHRISTOPHER & BANKS LIMITED | Removed | NZ Limited Company | 3482091 | political donors |
| Christopher & Banks Ltd via Peter Huljich | Unknown | - | - | political donors |
| Christopher and Banks Limited | Registered | NZ Limited Company | - | political donors |
| Christopher Grace Family Trust | Unknown | - | - | councillor interest |
| Christopher Guy Trust | Unknown | - | - | mp interest |
| Chritchurch Methodist Mission | Unknown | - | - | government contract suppliers |
| CHT Foundation | Unknown | - | - | corporate donations |
| Chubb - VitaCall | Unknown | - | - | government contract suppliers |
| Chubb Fire & Security | Unknown | - | - | government contract suppliers |
| CHUBB NEW ZEALAND | Registered | NZ Unlimited Company | 18506 | government contract suppliers |
| Churchill Hospital | Registered | Charitable Trust | - | government contract suppliers |
| Ciena Jump for Students Fund | Unknown | - | - | corporate donations |
| CINE TIMORE PRODUCTIONS LIMITED | Registered | NZ Limited Company | 4354598 | government contract suppliers |
| CIRCINI LIMITED | Registered | NZ Limited Company | 1542880 | government contract suppliers |
| CIRCLE HILL FARM MANAGEMENT LIMITED | Registered | NZ Limited Company | 4732980 | councillor interest |
| CIRCLE INVESTMENTS LIMITED | Registered | NZ Limited Company | 628559 | government contract suppliers |
| CIRCLE PACIFIC SUPPLIES LIMITED | Registered | NZ Limited Company | 6719814 | councillor interest |
| CIRCUIT CIVIL AND ASPHALT LIMITED | Registered | NZ Limited Company | 4042579 | government contract suppliers |
| CIRCULARITY GROUP LIMITED | Registered | NZ Limited Company | 8594067 | councillor interest |
| CIS BROKERS LIMITED | Registered | NZ Limited Company | 7855682 | councillor interest |
| CITIBANK NOMINEES (NEW ZEALAND) LIMITED | Registered | NZ Limited Company | 256875 | custodian fund mappings |
| CITIGROUP GLOBAL MARKETS NEW ZEALAND LIMITED | Registered | NZ Limited Company | 8422622 | government contract suppliers |
| Citizen's Advice Bureau Invercargill Incorporated | Registered | Incorporated Society | - | councillor interest |
| CITRUS CONSULTING GROUP LIMITED | Registered | NZ Limited Company | 5684517 | government contract suppliers |
| CITY CARE LIMITED | Registered | NZ Limited Company | 808897 | government contract suppliers |
| CITY CARE PROPERTY LIMITED | Registered | NZ Limited Company | 8764428 | government contract suppliers |
| City Care Pty Ltd | Unknown | - | - | government contract suppliers |
| CITY CARE WATER 1 LIMITED | Removed | NZ Limited Company | 8141337 | government contract suppliers |
| City Choir | Unknown | - | - | councillor interest |
| CITY CLEANING SERVICES LIMITED | Registered | NZ Limited Company | 113100 | government contract suppliers |
| CITY CONTRACTORS LIMITED | Registered | NZ Limited Company | 957925 | government contract suppliers |
| City Hope Charities Trust | Registered | Charitable Trust | - | government contract suppliers |
| CITYHOP RENTAL LIMITED | Removed | NZ Limited Company | 9245379 | government contract suppliers |
| Civic and Cultural Masterplan Steering Group | Unknown | - | - | councillor interest |
| Civic Awards | Unknown | - | - | councillor interest |
