- Carleton University
- Catalan Institution for Research and Advanced Studies
- Catholic University of Leuven = Katholieke Universiteit Leuven
- Center for Bioinformatics and Computational Biology [Maryland]
- Center for Integrative Genomics - Institute of Bioinformatics, Génopode
- Centre de Coopération Internationale en Recherche Agronomique pour le Développement
- Centre for Ecological Research of the Hungarian Academy of Sciences
- Centre for Life’s Origins and Evolution