- CERN [Genève]
- CNR Istituto di Scienza e Tecnologie dell’Informazione “A. Faedo” [Pisa]
- COMmunications, Réseaux, systèmes Embarqués et Distribués
- California Institute of Technology
- Carnegie Mellon University [Pittsburgh]
- Catholic University of Leuven = Katholieke Universiteit Leuven
- CentraleSupélec
- Centre National de la Recherche Scientifique
- Centre de Coopération Internationale en Recherche Agronomique pour le Développement
- Centre de Recherche Informatique de Montréal = Computer Research Institute of Montréal
- Centro de Informática e Tecnologia Informação
- Centrum Wiskunde & Informatica
- Chalmers University of Technology [Göteborg]
- Chinese Academy of Sciences [Beijing]
- Chinese Academy of Sciences [Changchun Branch]
- Commissariat à l'énergie atomique et aux énergies alternatives
- Commonwealth Scientific and Industrial Research Organisation [Australia]
- Computational and Systems Biology [Trento]
- Computer Learning Research Centre [Royal Holloway, University of London]
- Concurrency, Mobility and Transactions
- Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires]
- Construction of verified concurrent systems