| Coöperatieve Rabobank U.A. (Rabobank Group) [OLD: Coop. Centrale Raiffeisen-Boerenleenbank] |
| Cooperative Innovations |
| Copper Tun Ltd. [Trading as Nirvana Brewery] |
| Corewoman Corp. |
| Costa Limited |
| Costo Oy |
| Coty Inc |
| Counterculture Partnership LLP |
| Counterpoints Arts |
| Countrywide Limited |
| Covea Group |
| Coventry Biennial Ltd |
| Coventry Building Society |
| CPI S.A |
| Craghoppers Ltd |
| Craig Newmark Philanthropies |
| CREA |
| Create Ireland (C.A.F.E. Company Limited By Guarantee) |
| Creative Associates International, Inc |
| Creative Economy Team Limited |
| Creative Friction Ltd |
| Creative Listening |
| Creative UK Holdings Limited |
| CriteriaCaixa |
| Crossover Labs |