| Controlworks NZ Ltd | Unknown | - | - | government contract suppliers |
| CONVENE PTY LTD | Unknown | - | - | government contract suppliers |
| CONVERGA NEW ZEALAND LIMITED | Removed | NZ Limited Company | 1473328 | government contract suppliers |
| Converge Trust | Registered | Charitable Trust | - | councillor interest |
| Converged Communication Network Applications Pty Ltd | Unknown | - | - | government contract suppliers |
| COOK BROTHERS CONSTRUCTION LIMITED | Registered | NZ Limited Company | 1713808 | government contract suppliers |
| COOK BROTHERS GROUP LIMITED | Registered | NZ Limited Company | 2167043 | kanoa recipients |
| Cook Browne Family Trust | Unknown | - | - | councillor interest |
| cook costello | Unknown | - | - | government contract suppliers |
| Cook Island Christian Church (Invercargill Southland) Trust Board | Unknown | - | - | kanoa recipients |
| COOL AIR (2005) LIMITED | Registered | NZ Limited Company | 1651514 | government contract suppliers |
| Cool Ray Air Conditioning Whg Ltd | Unknown | - | - | government contract suppliers |
| COOMBES AQUATICS LIMITED | Registered | NZ Limited Company | 8114316 | government contract suppliers |
| Cooney Lees Morgan | Registered | - | - | |
| Cooper Investors | Unknown | - | - | fund managers |
| COOPER NO2 LIMITED | Registered | NZ Limited Company | 2488728 | government contract suppliers |
| Copan Australia | Unknown | - | - | government contract suppliers |
| COPELAND ASHCROFT LAW LIMITED | Registered | NZ Limited Company | 5812369 | government contract suppliers |
| COPURE PTY LIMITED | Registered | Overseas ASIC Company | 9355114 | government contract suppliers |
| Corban Animal Pest Solutions Ltd | Unknown | - | - | government contract suppliers |
| Corcoran French | Unknown | - | - | government contract suppliers |
| CORDE Ltd (formerly SICON Ltd) | Unknown | - | - | government contract suppliers |
| CORDES CONSULTING LIMITED | Removed | NZ Limited Company | 3722755 | government contract suppliers |
| CORE CEUTICALS PACIFIC LIMITED | Registered | - | - | |
| Core Education Ltd | Unknown | - | - | government contract suppliers |
| CORESTEEL NEW ZEALAND LIMITED | Registered | NZ Limited Company | 3951298 | government contract suppliers |
| Corinth Trust | Unknown | - | - | mp interest |
| CORNERSTONE BUILDING LIMITED | Removed | NZ Limited Company | 1098097 | government contract suppliers |
| CORNERSTONE CHILDREN'S SERVICES LIMITED | Removed | NZ Limited Company | 5600927 | government contract suppliers |
| Cornerstone Conservation | Registered | Partnership | - | government contract suppliers |
| CORNERSTONE ONDEMAND NEW ZEALAND LIMITED | Registered | NZ Limited Company | 1606120 | government contract suppliers |
| CORNERSTONE PROJECT DELIVERY LIMITED | Registered | NZ Limited Company | 9346431 | government contract suppliers |
| CORNERSTONE RAUMATI LIMITED | Registered | NZ Limited Company | 8193808 | councillor interest |
| CORNICHE HOLDINGS LIMITED | Registered | - | - | |
| COROGIGS LIMITED | Removed | NZ Limited Company | 6322907 | councillor interest |
| Coromandel Independent Living Trust | Registered | Charitable Trust | - | kanoa recipientsgovernment contract suppliers |
| COROMANDEL INSURANCE SERVICES LIMITED | Registered | NZ Limited Company | 7568116 | councillor interest |
| Coromandel Marine Farmers Association | Registered | Incorporated Society | - | kanoa recipients |
| Cororate Travel Management | Unknown | - | - | government contract suppliers |
| CORPLAN NEW ZEALAND LIMITED | Registered | NZ Limited Company | 7869016 | government contract suppliers |
| CORPORATE TRAVEL MANAGEMENT (NEW ZEALAND) LIMITED | Registered | NZ Limited Company | 3015100 | government contract suppliers |
| Corporate Trustee of Business Trust, Cleaning Franchisee Company | Unknown | - | - | mp interest |
| CORPORATE TRUSTEES LIMITED | Registered | NZ Limited Company | 6432912 | mp interest |
| Corsair Bay Residents Assoc | Unknown | - | - | councillor interest |
| CORUM LIMITED | Registered | NZ Limited Company | 2293800 | government contract suppliers |
| COSGROVE & PARTNERS LIMITED | Registered | NZ Limited Company | 6465153 | political donors |
| COSGROVE & PARTNERS LTD. | Unknown | - | - | political donors |
| COSGROVES LIMITED | Removed | NZ Limited Company | 2217102 | government contract suppliers |
| COST PLAN MANAGE LIMITED | Registered | NZ Limited Company | 8133450 | government contract suppliers |
| Cosy on Crozier Street Bed & Breakfast | Unknown | - | - | councillor interest |
