- Czech University of Life Sciences, Prague DEQARINST0247 CZ0003 Česká zemědělská univerzita v Praze Prague (Czech Republic)
- Czech Technical University in Prague DEQARINST0248 CZ0004 České vysoké učení technické v Praze Prague (Czech Republic)
- Cyprus University of Technology DEQARINST0224 CY0003 Τεχνολογικό Πανεπιστήμιο Κύπρου Limassol (Cyprus)
- Cyprus School of Molecular Medicine-The Cyprus Institute of Neurology and Genetics DEQARINST0243 CY0041 Nicosia (Cyprus)
- Cyprus International University DEQARINST7224 INT0807 Uluslararası Kıbrıs Üniversitesi
- Cyprus Forestry College DEQARINST4526 CY0008 Δασικό Κολέγιο Κύπρου Prodromos (Cyprus)
- Cyprus College DEQARINST0233 CY0019 Nicosia (Cyprus)
- Cyprus Business School DEQARINST4536 CY0034 The Cyprus Institute of Marketing Nicosia (Cyprus)
- CY Tech DEQARINST1156 FR0274 Cergy (France)
- CY Cergy Paris University DEQARINST7596 FR0366 CY Cergy Paris Université Cergy (France)
- Cusanus Hochschule Bernkastel-Kues (Priv. FH) DEQARINST4550 DE0472 Bernkastel-Kues (Germany)
- CUNEF Universidad, School of Engineering DEQARINST8551 Escuela Politécnica Superior Madrid (Spain)
- CUNEF Universidad, Graduate and International Business School DEQARINST8550 Escuela de Postgrado y Negocios Internacionales Madrid (Spain)
- Cukurova University DEQARINST2447 TR0032 Çukurova Üniversitesi Adana (Türkiye)
- Croatian Catholic University, Zagreb DEQARINST1300 HR0039 Hrvatsko katoličko sveučilište, Zagreb Zagreb (Croatia)
- Crisis Management State Academy of RA DEQARINST2893 ՀՀ Ճգնաժամային կառավարման պետական ակադեմիա Armenia
- Cracow University of Economics DEQARINST1957 PL0185 Uniwersytet Ekonomiczny w Krakowie Kraków (Poland)
- Côte d'Azur University DEQARINST7594 FR0364 Université Côte d'Azur Nice (France)
- Coventry University Kazakhstan DEQARINST9425 Astana (Kazakhstan)
- Coursera DEQARINST8785 Mountain View (United States)