| .camera | Binky Moon, LLC | — |
| .camp | Binky Moon, LLC | — |
| .canon | Canon Inc. | — |
| .capetown | ZA Central Registry NPC trading as ZA Central Registry | — |
| .capital | Binky Moon, LLC | — |
| .capitalone | Capital One Financial Corporation | — |
| .car | XYZ.COM LLC | — |
| .caravan | Caravan International, Inc. | — |
| .cards | Binky Moon, LLC | — |
| .care | Binky Moon, LLC | — |
| .career | dotCareer LLC | — |
| .careers | Binky Moon, LLC | — |
| .cars | XYZ.COM LLC | — |
| .casa | Registry Services, LLC | — |
| .case | Digity, LLC | — |
| .cash | Binky Moon, LLC | — |
| .casino | Binky Moon, LLC | — |
| .catering | Binky Moon, LLC | — |
| .catholic | Pontificium Consilium de Comunicationibus Socialibus (PCCS) (Pontifical Council for Social Communication) | — |
| .cba | COMMONWEALTH BANK OF AUSTRALIA | — |
| .cbn | The Christian Broadcasting Network, Inc. | — |
| .cbre | CBRE, Inc. | — |
| .center | Binky Moon, LLC | — |
| .ceo | XYZ.COM LLC | — |
| .cern | European Organization for Nuclear Research ("CERN") | — |
| .cfa | CFA Institute | — |
| .cfd | Shortdot SA | — |
| .chanel | Chanel International B.V. | — |
| .channel | Charleston Road Registry Inc. | — |
| .charity | Public Interest Registry (PIR) | — |
| .chase | JPMorgan Chase Bank, National Association | — |
| .chat | Binky Moon, LLC | — |
| .cheap | Binky Moon, LLC | — |
| .chintai | CHINTAI Corporation | — |
| .christmas | XYZ.COM LLC | — |
| .chrome | Charleston Road Registry Inc. | — |
| .church | Binky Moon, LLC | — |
| .cipriani | Hotel Cipriani Srl | — |
| .circle | Amazon Registry Services, Inc. | — |
| .cisco | Cisco Technology, Inc. | — |
| .citadel | Citadel Domain LLC | — |
| .citi | Citigroup Inc. | — |
| .citic | CITIC Group Corporation | — |
| .city | Binky Moon, LLC | — |
| .claims | Binky Moon, LLC | — |
| .cleaning | Binky Moon, LLC | — |
| .click | Internet Naming Co. | — |
| .clinic | Binky Moon, LLC | — |
| .clinique | The Estée Lauder Companies Inc. | — |
| .clothing | Binky Moon, LLC | — |