- ABB
- ABB Robotics
- ACCESS Linnaeus Centre [Sweden]
- ACCESS Linnaeus Centre and School of Electrical Engineering [Sweden]
- AELOS
- AGH University of Science and Technology [Krakow, PL]
- ALCATEL
- ALL4TEC
- ALL4TEC RD [Laval]
- ARC System Research
- ARM Ltd [Cambridge]
- AT&T Bell Laboratories
- AT&T Laboratories
- AT&T Labs Research
- AT4 wireless
- AVL LIST GmbH (.)
- AVL List GmbH
- Aalborg University [Denmark]
- Aalto University
- Aalto University School of Science and Technology [Aalto, Finland]
- Aarhus University [Aarhus]
- Abdullah Gül Üniversitesi [Kocasinan]
- Academia Sinica
- Accenture
- Accenture Technology Labs [Bangalore]
- Adaptive Distributed Applications and Middleware
- Advanced Network Architectures Lab
- Ahlia University
- Air Force Research Laboratory
- Airbus Central Research and Technology [Munich]
- Airbus Defence and Space [Taufkirchen]
- Airbus Group Innovations [Suresnes]
- Airbus [France]
- Aix Marseille Université
- Ajman University
- Akamai Technologies
- Al-Baha University
- Al-Balqa Applied University [Amman]
- Al-Balqa' Applied University [Salt]
- Alarcos Research Group
- Albert-Ludwigs-Universität Freiburg
- Alcatel Lucent Bell Labs
- Alcatel-Lucent Bell Labs
- Alcatel-Lucent Bell Labs France
- Alcatel-Lucent Bell Labs France [Nozay]
- Alenta
- Alexandru Ioan Cuza University of Iași = Universitatea Alexandru Ioan Cuza din Iași
- Algorithms for the Grid
- Algorithms, simulation, combinatorics and optimization for telecommunications
- Aliah University
- Alliance University
- Alma Mater Studiorum Università di Bologna = University of Bologna
- Alpen-Adria-Universität Klagenfurt [Klagenfurt, Austria]
- Altice Labs [Aveiro]
- Altreonic
- AmbieSense Ltd
- Ambient Middleware Architectures: Service-Oriented, Networked, Efficient and Secured
- American University in the Emirates - الجامعة الأمريكية في الإمارات
- American University of Beirut [Beyrouth]
- American University of Sharjah
- American University of The Middle East [Eqaila]
- Amman College of Banking and Financial Studies
- Analysis and Transformation based on rEliAble tool coMpositionS
- Anhui University [Hefei]
- Ankara University
- Ankara Üniversitesi
- Anna University
- Applied Information Security
- Applied Mathematics Department
- Aragón Institute of Engineering Research [Zaragoza]
- Arcada University of Applied Sciences
- Architecture, Cloud continuum, formal Models, artificial intElligence and Services in distributed computing
- Argonne National Laboratory [Lemont]
- Aristotle University of Thessaloniki
- Arizona State University [Tempe]
- Arts et Métiers Sciences et Technologies
- As Scalable As Possible: foundations of large scale dynamic distributed systems
- Asian University of Bangladesh
- Aspect and composition languages
- Assistance à la Certification d’Applications DIstribuées et Embarquées
- Assumption College
- Aston University [Birmingham]
- Athens University of Economics and Business
- Athlone Institute of Technology
- Atilim University
- Atos Origin sae
- Audi Electronics Venture GmbH
- Australian National University
- Austrian Institute of Technology [Vienna]
- Authentication Industries [Montpellier]
- Autonomous University of Sinaloa
- Avignon Université
- Aviva Groupe Ireland
- Azman Hashim International Business School
- Azrieli School of Architecture [Tel-Aviv]
- Åbo Academy University
- Åbo Akademi University [Turku]