| Charleston Road Registry Inc. | Learn more | .android | |
| Citigroup Inc. | Learn more | .banamex | |
| Council of Better Business Bureaus, Inc. | Learn more | .bbb | |
| CANAL+ FRANCE | Learn more | .canalplus | |
| Canon Inc. | Learn more | .canon | |
| Capital One Financial Corporation | Learn more | .capitalone | |
| Caravan International, Inc. | Learn more | .caravan | |
| COMMONWEALTH BANK OF AUSTRALIA | Learn more | .cba | |
| CBRE, Inc. | Learn more | .cbre | |
| CBS Domains Inc. | Learn more | .cbs | |
| CFA Institute | Learn more | .cfa | |
| Chanel International B.V. | Learn more | .chanel | |
| Changi Airport Group (Singapore) Pte. Ltd | Learn more | .changiairport | |
| CHINTAI Corporation | Learn more | .chintai | |
| Charleston Road Registry Inc. | Learn more | .chrome | |
| Chrysler Group LLC. | Learn more | .chrysler | |
| CIMB Group Sdn Bhd | Learn more | .cimb | |
| Cisco Technology, Inc. | Learn more | .cisco | |
| Citadel Domain LLC | Learn more | .citadel | |
| Citigroup Inc. | Learn more | .citi | |
| CITIC Group Corporation | Learn more | .citic | |
| Club M | Learn more | .clubmed | |
| Comcast IP Holdings I, LLC | Learn more | .comcast | |
| COMMONWEALTH BANK OF AUSTRALIA | Learn more | .commbank | |
| Crown Equipment Corporation | Learn more | .crown | |
| Charleston Road Registry Inc. | Learn more | .dclk | |
| Chrysler Group LLC. | Learn more | .dodge | |
| Charleston Road Registry Inc. | Learn more | .gbiz | |
| Charleston Road Registry Inc. | Learn more | .gle | |
| Charleston Road Registry Inc. | Learn more | .gmail | |
| Charleston Road Registry Inc. | Learn more | .goog | |
| Charleston Road Registry Inc. | Learn more | .google | |
| Charleston Road Registry Inc. | Learn more | .guge | |
| Connect West Pty. Ltd. | Learn more | .iinet | |
| Chrysler Group LLC. | Learn more | .jeep | |
| Chrysler Group LLC. | Learn more | .mopar | |
| COMMONWEALTH BANK OF AUSTRALIA | Learn more | .netbank | |
| Charleston Road Registry Inc. | Learn more | .nexus | |
| Chrysler Group LLC. | Learn more | .ram | |
| CBS Domains Inc. | Learn more | .showtime | |
| Chrysler Group LLC. | Learn more | .uconnect | |
| China United Network Communications Corporation Limited | Learn more | .unicom | |
| Comcast IP Holdings I, LLC | Learn more | .xfinity | |
| Charleston Road Registry Inc. | Learn more | .youtube | |
