| Coretek Opto Corporation | Taiwan |
| Cornerstone | Hong Kong |
| Cornerstone Robotics Ltd | |
| Correios e Telecomunicações de Macau | |
| Cortex Market Ltd | |
| Corxel Pharmaceuticals Ltd | |
| Cosel Asia Ltd | Hong Kong |
| Coship | Guangdong |
| Cosmos i-Tech Solutions Ltd | Hong Kong |
| Costar Electronics, Inc. | Taiwan |
| Costronic Co., Ltd | Taiwan |
| Cotech Electronics Co., Ltd | Taiwan |
| Cowave Communication Technology Co., Ltd | |
| Cowin Semiconductor Materials (Ningbo) Co., Ltd | Zhejiang |
| Coyote Bioscience Co., Ltd | Beijing |
| CRAXH Production Ltd | |
| Creatop | Taiwan |
| CreatorDB | Taiwan |
| Creaturelab Network Solutions Co., Ltd | |
| CreditEase Israel Innovation Fund | Hong Kong |
| CReTE Systems, Inc. | Taiwan |
| Crosschip MicroSystems, Inc. | |
| Crown Joy International Ltd | Hong Kong |
| Croyez Bioscience Co., Ltd | Taiwan |
| CSI Zhonghua System Integration | Taiwan |
| CSL Mobile Ltd | Hong Kong |
| CSMC Technologies Corporation | Jiangsu |
| CSPC | Hebei |
| CSPC Pharmaceutical Group Co., Ltd | |
| CSPC Pharmaceutical Group Ltd | |
| CStone Pharmaceuticals | |
| CSUN Solar Tech Co., Ltd | Jiangsu |
| CTBC University of Technology | |
| CTC Union Technologies Co., Ltd | Taiwan |
| CTEC | Beijing |
| Currenxie Ltd | Hong Kong |
| CustomMemory.com.tw | Taiwan |
| Cutia Therapeutics | |
| Cutout.Pro | Hong Kong |
| CVCapital | Shanghai |
| CXsemi Co., Ltd | Taiwan |
| Cyber Business Network (Hong Kong) Ltd | Hong Kong |
| CyberLink Corporation | Taiwan |
| Cyberport | Hong Kong |
| Cyberspace Administration of China | Beijing |
| Cyberspace Jobs | Hong Kong |
| CyberTAN Technology, lnc. | Taiwan |
| Cyberway Compucomm Co., Ltd | Guangdong |
| Cybrid Technologies, Inc. | |
| CyCraft | Taiwan |