- ABB
- ABB Robotics
- AELOS
- ALL4TEC
- ALL4TEC RD [Laval]
- ARM Ltd [Cambridge]
- AT&T Laboratories
- AVL LIST GmbH (.)
- AVL List GmbH
- Aalborg University [Denmark]
- Aalto University
- Accenture Technology Labs [Bangalore]
- Adaptive Distributed Applications and Middleware
- Airbus Central Research and Technology [Munich]
- Airbus Defence and Space [Taufkirchen]
- Airbus Group Innovations [Suresnes]
- Airbus [France]
- Aix Marseille Université
- Al-Baha University
- Al-Balqa' Applied University [Salt]
- Alarcos Research Group
- Albert-Ludwigs-Universität Freiburg = University of Freiburg
- Alcatel-Lucent Bell Labs
- Alexandru Ioan Cuza University of Iași = Universitatea Alexandru Ioan Cuza din Iași
- Algorithms for the Grid
- Alma Mater Studiorum Università di Bologna = University of Bologna
- Altreonic
- Amazon Web Services [Seattle]
- AmbieSense Ltd
- American University of Beirut [Beyrouth]
- American University of Sharjah
- Analysis and Transformation based on rEliAble tool coMpositionS
- Andrea Razmadze Mathematical Institute
- Anhui University [Hefei]
- Anna University
- Applied Information Security
- Architecture, Cloud continuum, formal Models, artificial intElligence and Services in distributed computing
- Argonne National Laboratory [Lemont]
- Aristotle University of Thessaloniki
- Arizona State University [Tempe]
- As Scalable As Possible: foundations of large scale dynamic distributed systems
- Aspect and composition languages
- Assistance à la Certification d’Applications DIstribuées et Embarquées
- Aston University [Birmingham]
- Athens University of Economics and Business
- Audi Electronics Venture GmbH
- Australian National University
- Austrian Institute of Technology [Vienna]
- Autonomic and Critical Embedded Systems
- Åbo Akademi University [Turku]