| China Satellite Communications Co., Ltd | Beijing |
| China Securities Regulation Commission | |
| China Semiconductor Industry Association | Beijing |
| China Software Industry Association | Beijing |
| China Software Testing Center | Beijing |
| China SXT Pharmaceuticals, Inc. | |
| China System Co., Ltd | Hong Kong |
| China Telecom Construction and Engineering Co., Ltd | Beijing |
| China Telecom Corporation Ltd | Hong Kong |
| China Telecom Global Ltd | Hong Kong |
| China Telecommunications Corporation | Beijing |
| China Three Gorges University | |
| China Unicom | |
| China Unicom (Hong Kong) Ltd | Hong Kong |
| China United Network Communications Group Co., Ltd | Beijing |
| China United Network Communications Ltd | Shanghai |
| China University of Geosciences | |
| China University of Geosciences-Beijing | Beijing |
| China University of Labor Relations | |
| China University of Mining and Technology | |
| China University of Mining and Technology-Beijing | Beijing |
| China University of Petroleum | |
| China University of Political Science and Law | Beijing |
| China University of Science and Technology | |
| China University of Technology | |
| China Women's University | |
| China-net | Beijing |
| China-Vision | Guangdong |
| ChinaByte.com | Chongqing |
| Chinaccelerator | Shanghai |
| ChinaClick·Shanghai Feiqing Network Technology Co., Ltd | Shanghai |
| Chinafu.com | Shanghai |
| ChinaHotLine | Guangdong |
| ChinaIDC.com.cn | Anhui |
| ChinaJSP | Liaoning |
| ChinaNetCloud | Shanghai |
| ChinaPCBOne | Guangdong |
| ChinaTechNews | Hong Kong |
| ChinaUnix | Beijing |
| Chinavision | Guangdong |
| ChinaZRH Ltd | Guangdong |
| Chindata (Beijing) Co., Ltd | Beijing |
| Chinese Academy of Agricultural Sciences | |
| Chinese Academy of Medical Sciences & Peking Union Medical College | |
| Chinese Academy of Sciences | Beijing |
| Chinese Domain Name Consortium | Beijing |
| Chinese Mathematical Society | Beijing |
| Chinese National Human Genone, Beijing | |
| Chinese University of Hong Kong | Hong Kong |
| Chinese University of Hong Kong - Department of Computer Science and Engineering | Hong Kong |