- Center for Electronic Governance
- Centre National de la Recherche Scientifique
- Centre for Computing and Social Responsibility [Leicester]
- Centre for Research in Complex Systems, School of Computing and Mathematics
- Centre for Security and Society [Freiburg]
- Centre for Strategic Economic Studies
- Centre for Sustainable Communications [Stockholm]
- Centro Universitário da FEI
- Charles Sturt University [Australia]
- Chuo University
- City University of Hong Kong [Hong Kong]
- College of Risk Management [Tokyo]
- Computer Technology Institute and Press "Diophantus" [Greece]
- Council for Scientific and Industrial Research (CSIR)
- Council for Scientific and Industrial Research [Cape Town]
- Council for Scientific and Industrial Research [Pretoria]