- RFI Global Services Ltd.
- RSA Laboratories
- Radboud University Medical Center [Nijmegen]
- Radboud University [Nijmegen]
- Rambus
- Red Hat Czech [Czech Republic]
- Regis University
- Rensselaer Polytechnic Institute
- Research Academic Computer Technology institute [Patras]
- Research Institute in Science of Cyber Security
- Research Institute of Electrical Communication [Sendai]
- Research School of Computer Science [Canberra]
- Research at Google
- RetailMeNot
- Rheinisch-Westfälische Technische Hochschule Aachen University
- Rhodes University, Grahamstown
- Riscure
- Ritsumeikan University
- Robert Bosch RTC—LLC
- Rochester Institute of Technology
- Romanian Academy of Sciences
- Royal Holloway [University of London]
- Royal Melbourne Institute of Technology University
- Ruhr University Bochum = Ruhr-Universität Bochum
- Rutgers Business School
- Rutgers University System
- Rutgers University [Camden]
- Rutgers University [Newark]
- Rutgers, The State University of New Jersey [New Brunswick]
- RÉSEAUX, TÉLÉCOMMUNICATION ET SERVICES
- Réseaux, Systèmes, Services, Sécurité