- CELS - Research Group on Industrial Engineering, Logistics and Services Operations
- CERN [Genève]
- CESI : groupe d’Enseignement Supérieur et de Formation Professionnelle
- CSE Department, College of Engineering, Qatar University, PO BOX 2713, Doha, Qatar
- CY Cergy Paris Université
- Cadesis
- Cadmes
- Capgemini
- Capgemini [Toulouse]
- Capital Normal University [Beijing]
- Carl Von Ossietzky Universität Oldenburg = Carl von Ossietzky University of Oldenburg
- Central South University [Changsha]
- CentraleSupélec
- Centre François Viète : épistémologie, histoire des sciences et des techniques - EA1161
- Centre National de la Recherche Scientifique
- Centre de Recherche Clermontois en Gestion et Management
- Centre de Recherche en Automatique de Nancy
- Centre de Recherche en Informatique de Paris 1
- Centre de Recherches et d'Etudes Interdisciplinaires sur le Développement Durable
- Centre de recherche sur le travail et le développement
- Centre for Product Design and Manufacturing
- Centro Universitário das Faculdades Metropolitanas Unidas = University Center of United Metropolitan Faculties
- Chalmers University of Technology [Göteborg]
- Changchun University
- Chemnitz University of Technology | Technische Universität Chemnitz
- Chengdu University of Technology
- Chiang Mai University
- China Academy of Agricultural Sciences
- China Aerospace Construction Group Co., Ltd
- China Agricultural University
- China Agriculture University [Beijing]
- China Institute of Water Resource and Hydropower Research [Beijing]
- China Meteorological Bureau
- China National Institute of Standardization [Beijing]
- China National Research Center of Intelligent Equipment for Agriculture [Beijing]
- Chinese Academy of Agricultural Engineering
- Chinese Academy of Agricultural Mechanization Sciences
- Chinese Academy of Agricultural Sciences
- Chinese Academy of Agriculture Mechanization Sciences
- Chinese Academy of Agriculture sciences
- Chinese Academy of Sciences [Beijing]
- Chinese Academy of Sciences [Changchun Branch]
- Chinese Academy of Surveying and Mapping
- Chinese Academy of Tropical Agricultural Sciences
- Chinese Land Surveying and Planning Institute
- Chung-Ang University
- Chuo University
- Cimpa Limited [Bristol]
- Clausthal University of Technology
- Collaborative Innovation Center of Grain Production Capacity Improvement in Heilongjiang Province
- College of Engineering [Beijing]
- College of Heilongjiang Province
- Colorado State University [Fort Collins]
- Commissariat à l'énergie atomique et aux énergies alternatives
- Computer Science Department
- Computer Science and Communications Research Unit [Luxembourg]
- Computer Science and Information Technology
- Conception Collaborative et Intégrée
- Conception Produit Process
- Conception collaborative
- Concordia Institute for Information Systems Engineering
- Concordia University [Montreal]
- Conservatoire National des Arts et Métiers [CNAM]
- Consiglio Nazionale delle Ricerche [Milano]
- Construction Ressources Environnement Aménagement et Habitat durables [Pessac]
- Contact Software [Bremen]
- Coventry University
- Croatian Academy of Sciences and Arts in Diaspora and Homeland
- Cruzeiro do Sul University-UNICSUL