Organizations
- Xiamen University - (Amoy, Fujian, China) External Organization
- Xi'an University of Posts and Telecommunications - (Xi'an, China) External Organization
- Xidian University - (Xi'an, China) External Organization
- Xi'an Shiyou University - (Xi'an, China) External Organization
- Xi'an Jiaotong University - (Xi'an, China) External Organization
- Xlibris Corporation Publisher
- Xunta de Galicia Publisher
- Xi'an Gaoya Dianqi Yanjiusuo Publisher
- Xia & He Publishing Publisher
- X-Knowledge Publisher