List of NRENs that are TCS members
- ACONET ACOnet
- AMRES AMRES Akademska mreža Srbije
- ANA Academic Network of Albania
- ARNES ARNES
- AUB American University Beirut
- BELNET Le Réseau Télématique belge de la Recherche
- CARNET Hrvatska Akademska I Istraživačka Mreža
- CESNET CESNET z.s.p.o.
- CYNET Cyprus Research and Academic Network
- DEIC Danish IT Centre for Education and Research
- EENET Estonian Education and Research Network
- FCT I.P. National Foundation for Scientific Computing
- FUNET CSC – IT Center for Science Ltd.
- GARR Italian Research and Education Network
- GRNET Greek Research and Technology Network
- HEANET HEAnet Ltd.
- IUCC Israel InterUniversity Computation Center
- LITNET Information Technology Development Institute of Kaunas University of Technology
- KIFU Former NIIF/HUNGARNET -> KIFU
- MARWAN Ministère de l'Enseignement Supérieur de la Recherche Scientifique et la Formation des Cadres - Morocco
- OMREN Oman Research and Education Network
- PSNC Institute of Bioorganic Chemistry, Polish Academy of Sciences – Poznań Supercomputer and Networking Center
- RedIRIS Entidad pública empresarial Red.es
- RENATER GIP RENATER
- RENAM Research and Educational Networking Association of Moldova
- RESTENA Reseau Teleinformatique de l'Education Nationale et de la Recherche
- RoEduNet Agency ARNIEC / RoEduNet
- SANET Slovak Academic Network Association
- SUNET Swedish University Computing Network
- SURFNET SURFnet bv
- UNI-MALTA University of Malta
- UNINETT UNINETT AS