- CIDER
- CNR Istituto di Scienza e Tecnologie dell’Informazione “A. Faedo” [Pisa]
- COPPEAD Graduate School of Business = Instituto Coppead de Administração
- CREG-AICA
- CSD Consulting [Denmark]
- Cambridge Computer Lab Ring
- Canadian Information Processing Society
- Cape Peninsula University of Technology
- Caribou Digital
- Catholic University of Leuven = Katholieke Universiteit Leuven
- Center for Digital Safety & Security [Vienna]
- Center for Electronic Governance
- Center for Usability Research and Engineering [Vienna]
- Central Institute for Research on Cotton Technology
- Central Marine Fisheries Research Institute
- CentraleSupélec
- Centre Alexandre Koyré - Centre de Recherche en Histoire des Sciences et des Techniques
- Centre National de la Recherche Scientifique
- Centre de Gestion Scientifique i3
- Centre d’Excellence en Technologies de l’Information et de la Communication
- Centre for Computing and Social Responsibility [Leicester]
- Centre for Contemporary History Potsdam
- Centre for Health, Law and Emerging Technologies
- Centre for Quantum Computation and Intelligent Systems [Sydney]
- 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]
- Centre for the Study of the Sciences and the Humanities
- Centro Universitário da FEI
- Centrum Wiskunde & Informatica
- Chair of Mobile Business & Multilateral Security
- Chaire Valeurs Politiques des Informations Personnelles
- Chalmers University of Technology [Göteborg]
- Charles Babbage Institute
- Charles Sturt University [Australia]
- Chercheur indépendant
- Chukyo University
- Chuo University
- City University of Hong Kong [Hong Kong]
- Claremont Graduate University [Claremont, CA ]
- Clark University
- Cloud and Security Lab [Bristol]
- College of Business
- College of Business Education
- College of Risk Management [Tokyo]
- Commonwealth Scientific and Industrial Research Organisation [Australia]
- Competa IT
- Computer Engineering Department
- Computer History Museum [Mountain View]
- Computer Science Department [Amsterdam]
- Computer Security and Industrial Cryptography [KU Leuven]
- Computer Technology Institute and Press "Diophantus"
- Computer Technology Institute and Press "Diophantus" [Greece]
- Computer conservation Society
- Confidentialité, Intégrité, Disponibilité et Répartition
- ConnectHer
- Copenhagen Business School [Copenhagen]
- Council for Scientific and Industrial Research (CSIR)
- Council for Scientific and Industrial Research [Cape Town]
- Council for Scientific and Industrial Research [Pretoria]
- Cranfield University
- Cultural History Department [Turku]