- AAA College of Engineering and Technology
- Aalborg University [Denmark]
- Aalesund University College
- Aalto University
- Aalto University School of Science and Technology [Aalto, Finland]
- Aarhus School of Architecture
- Aarhus University [Aarhus]
- Aarhus University Hospital
- ABB Corporate Research Center
- ABB Corporate Research [Västerås]
- ABB S.p.A.
- Abdelmalek Essaadi University [Tétouan] = Université Abdelmalek Essaadi [Tétouan]
- Abdus Salam International Centre for Theoretical Physics [Trieste]
- Abertay University
- ABM Info Tech [Islamabad]
- Åbo Academy University
- Åbo Akademi University [Turku]
- Absa Capital [Johannesburg]
- Academia Sinica
- Academic Center for Computing and Media Studies
- Academy for Information Technology [University of Johannesburg]
- Academy of Armored Forces Engineering
- Academy of Equipment [Beijing]
- Academy of Instrumental Modern TRIZ
- Academy of Romanian Scientists [Bucharest]
- Academy of Shandong BaoLai-LeeLai Bioengineering Co. Ltd
- Academy of Spaceflight Technology [Shanghai]
- Academy of the Ministry of Emergency Situations of the Republic of Azerbaijan
- Accademia Musicale Studio Musica
- Accenture [Arlington, Virginia]
- Accenture [Oslo]
- Accenture Technology Consulting - Security
- ACCESS
- Access to Information
- Accirrus
- Accounting School
- ACP Advanced Circuit Pursuit AG
- ACR Analytics
- ACTA mobilier
- Acthan Expertises
- Action Design
- Active Innovation Management
- ACT Operations Research
- Adams 12 Five Star Schools
- Adani Institute of Infrastructure Engineering
- ADAPT Centre
- Adastral Park
- AddiFab ApS
- Addis Ababa University
- ADITESS
- Aditro [Espoo]
- Administratia Nationala de Meteorologie
- Administration of Quality and Technology Supervision of Guangdong Province
- Administration of Quality Supervision, Inspection and Quarantine
- Administrative Centre for China's Agenda 21
- Advanced Institute of Convergence Technology [Suwon-si]
- Advanced Manufacturing and Materials
- Advanced Signal Processing Group
- Advanced System Technology [Ilmenau]
- Advanced Technologies for Operated Networks
- Advanced Technology Systems
- Advanced Technology Systems [Romania]
- Adventure Research [Warnsveld]
- AEC3 Deutschland GmbH
- AEC Soluzioni srl
- Aeroport International de Marseille-Provence
- Aerospace Information Research Institute
- Afe Babalola University
- Africa Women Filmmakers Trust [Harare]
- Aga Khan Academy
- Agency for science, technology and research [Singapore]
- Agenor-I
- Agenzia Lucana di Sviluppo e di Innovazione in Agricoltura
- Agenzia Nazionale per le nuove Tecnologie, l’energia e lo sviluppo economico sostenibile = Italian National Agency for New Technologies, Energy and Sustainable Economic Development
- Aghetera Environment & Development
- Aghetera Sas
- AGH University of Science and Technology [Krakow, PL]
- AGILEA S.A.S.
- Agilent Technologies France
- Agios Therissos Medical Diagnostic Centre
- AG Mensch-Computer-Interaktion
- Agresearch Ltd
- Agricultural Bank of China
- Agricultural engineer center
- Agricultural Information Institute
- Agricultural Information Institution
- Agricultural Information Institution of CAAS
- Agricultural Technological Extensive Station of Luntai County in Xinjiang
- Agricultural University of Hebei
- Agricultural University [Plovdiv]
- Agriculture and Agri-Food
- Agriculture College
- Agriculture Division: Department of Environment and Primary Industries
- Agriculture Information Institute
- Agriculture Research: Department of Environment and Primary Industries
- Agriculture Research Service
- AgroApps
- Agroknow [Athens]
- Agronomy College Henan
- Agronomy College of Henan Agricultural University
- Agrophysical Research Institute
- AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement
- Águas do Tejo Atlântico,
- AGW Lawyers and Consultants
- AGW Lawyers & Consultants
- Aichi Institute of Technology
- Ainia centro tecnológico, Parque tecnológico de Valencia
- Ainia centro tecnológico Valencia
- Ain Shams University
- Airbus Defence and Space [Taufkirchen]
- Airbus [France]
- Airbus Group
- Airbus Group Innovations [Suresnes]
- Airbus Group [Madrid]
- Airbus Helicopters
- Airbus Operation S.A.S.
- Airbus Operations GmbH
- Airbus Operations Ltd
- AIRBUS Operations Ltd.
- Airbus [Sevilla]
- Airbus [United Kingdom]
- Air Defense Forces Academy
- Air Force Engineering University [Xi'an]
- Air Force Institute of Technology
- Air Force Research Laboratory
- Air France KLM
- Air University
- Aix Marseille Université
- A. J. Institute of Engineering and Technology [Mangaluru]
- Ajman University
- Ajou University
- Aker Solutions AS [Bergen]
- Akita University
- Al Akhawayn University in Ifrane
- ALBA Graduate Business School [Athens, Greece]
- Al-Balqa Applied University [Amman]
- Al-Balqa' Applied University [Salt]
- Albert-Ludwigs-Universität Freiburg = University of Freiburg
- ALCATEL
- Alcatel Lucent Bell Labs
- Alenta
- Aletheia University [New Taipei]
- Alexander Technological Educational Institute of Thessaloniki
- Alexandra Institute [Aarhus]
- Alexandria University [Alexandrie]
- Alexandru Ioan Cuza University of Iași = Universitatea Alexandru Ioan Cuza din Iași
- Al-Farabi Kazakh National University [Almaty]
- Alfatroll AS [Norway]
- Algorithmes, Programmes et Résolution
- Algorithm Ltd.
- Algorithms and Software Architectures for Distributed and HPC Platforms
- Algorithms for Dynamic Dependable Systems
- Algorithms for the Grid
- Algoritmi Research Centre
- Alibaba Group [Hangzhou]
- Aligarh Muslim University
- Alimetrics Ltd
- Alkit Communications AB
- Alliance for Internet of Things Innovation
- Alliance Manchester Business School
- Alliance University
- Almaarefa College
- Alma Mater Studiorum Università di Bologna = University of Bologna
- ALNEOS
- Alpen-Adria-Universität Klagenfurt [Klagenfurt, Austria]
- Alstom Transporte SA
- Alta Scuola Politecnica
- Altera Corporation
- Altice Labs [Aveiro]
- Altshuller Institute
- Altuity Solutions
- AMBERO Consulting GmbH
- AmbientEase
- Ambient Middleware Architectures: Service-Oriented, Networked, Efficient and Secured
- American International University-Bangladesh
- American University in Cairo
- American University of Beirut [Beyrouth]
- American University of Nigeria
- American University of The Middle East [Eqaila]
- American University Washington D.C.
- AMG Technology Ltd.
- Amirkabir University of Technology
- Ampère
- Ampère, Département Méthodes pour l'Ingénierie des Systèmes
- A.M. Pidgorny Institute for Mechanical Engineering Problems
- Amrita University
- Amrita Vishwa Vidyapeetham
- Amsterdam University of Applied Sciences
- Anadolu [Turkey]
- Analysis and Control of Unsteady Models for Engineering Sciences
- Analysis and Visualization
- Analytech Miljølaboratorium A|S
- Anchor University [Lagos]
- Anding District People’s Armed Forces Department
- Anglia Ruskin University
- Anhalt University of Applied Sciences
- Anhui Academy of Agricultural Sciences
- Anhui Agricultural University [Hefei]
- Anhui Agriculture University
- Anhui Institute of Architectural and Industry
- Anhui Provincial Meteorological Bureau
- Anhui University [Hefei]
- Animal Health and Veterinary Laboratories Agency
- Animal Health Research Institute
- Anindilyakwa Land Council
- An-Najah National University
- Annamalai University
- Anna University
- Ansaldo Energia
- ANSYS Germany GmbH
- Antalya Bilim University
- Antecs S.r.l.
- Aoyama Gakuin University
- A.P. Ershov Institute of Informatics Systems [Novosibirsk]
- APESA [Pau]
- APJ Abdul Kalam Technological University
- Apostolic Church [Bikita]
- Application Engineering, Design And Verification In ICs And Embedded Systems
- Applied Biomathematics [New York]
- Applied informatics in management and economy [Messolonghi]
- Applied Mathematics Department
- Apply Sørco
- Approches Littéraires, Linguistiques et Historiques des Sources
- Aptiv [Göteborg]
- Aptos Retail [Milan]
- Arab Academy for Science, Technology and Maritime Transport [Alexandria]
- ARC Centre for Forest Value
- Arcelik A.S
- Archéologie et Archéométrie
- Architecture, Cloud continuum, formal Models, artificial intElligence and Services in distributed computing
- Architectures and Methods for Resilient Systems
- Archive Centre of the French Community of Wallonia-Brussels and Temporary Exhibition Space [Mons]
- Archives Henri-Poincaré - Philosophie et Recherches sur les Sciences et les Technologies
- Archon Information Systems
- Arcticus Systems AB
- Arden Anglican School
- Argonne National Laboratory [Lemont]
- Argumentation, Décision, Raisonnement, Incertitude et Apprentissage
- Aristotle University of Thessaloniki
- Arizona State University [Tempe]
- Armengaud Innovate GmbH
- ARM Inc
- ARM Ltd [Cambridge]
- Army Engineering University [Jiangsu]
- Arrival UK
- Artelia Eau & Environnement [Echirolles]
- Artelia Eau & Environnement [Lyon]
- Artificial Intelligence Lab, Faculty of Computer Science
- Artificial Intelligence Laboratory [EPFL]
- Artificial Intelligence Research Institute [South Korea]
- Artificial Intelligence Research Institute | Spanish Scientific Research Council
- Arts et Métiers ParisTech
- Arts et Métiers Paristech ENSAM Aix-en-Provence
- Arts et Metiers ParisTech, LCPI
- Arts et Métiers Sciences et Technologies
- Arxia
- ASAP Inter-University Research Center
- Ashridge Executive Education
- Asia e University [Kuala Lumpur]
- Asian Institute of Technology [Pathumthani]
- Asia-Pacific Economic Cooperation
- Asia Pacific University of Technology and Innovation [Petaling]
- Asia University
- ASKO
- Assistance publique - Hôpitaux de Paris (AP-HP)
- Assistant Professor Civil Engineering Faculty
- Assistant Professor, Department of Computer Engineering
- Associação Paulista para o Desenvolvimento da Medicina
- Association EURATOM-CEA
- Association of Independent Schools of South Australia
- Associazione Euratom-ENEA sulla Fusione
- Associazione Italiana per l’Informatica ed il Calcolo Automatico
- Assystem France
- Aston University [Birmingham]
- AstraZeneca
- Atacama Large Millimeter|submillimeter Array
- ATB - Institut für angewandte Systemtechnik Bremen
- Atea Sverige AB
- Ateneo de Manila University
- Athabasca University
- ATHENA - Research and Innovation Center in Information, Communication and Knowledge Technologies
- ATHENA Research and Innovation Centre in Information Communication and Knowledge Technologies
- ATHENA Research & Innovation Centre
- Athens Technology Center S.A. [Athènes]
- Athens University of Economics and Business
- Athinoula A. Martinos Center for Biomedical Imaging
- Athonet
- Atilim University
- Atlantic Technological University Sligo
- ATLANTIS Engineering S.A.
- Atma Jaya Yogyakarta University
- Atomic Energy Regulatory Board
- Atomic Energy Research Establishment
- Atos
- AtoS
- ATOS
- ATOS [Barcelona]
- Atos Consulting [Utrecht]
- ATOS [madrid]
- ATOS Origin
- Atos Origin sae
- Atos Spain
- Attica Wealth Management
- “Attikon” University Hospital
- AT&T Laboratories
- AT&T Labs Research
- Auburn University
- Auckland University of Technology
- Audencia Business School
- Audros Technology
- AULIVE
- Australian Bureau of Meteorology [Melbourne]
- Australian Computer Museum Society
- Australian Computer Society
- Australian Cyber Security Centre
- Australian Defence Force Academy [Canberra]
- Australian Federal Police
- Australian Government
- Australian Maritime College
- Australian National University
- Austrian Academy of Sciences
- Austrian Institute of Technology [Klagenfurt]
- Austrian Institute of Technology [Vienna]
- Austrian Red Cross
- Auteur indépendant
- Autodesk Research
- Automated Scheduling, Optimisation and Planning Research Group, School of Computer Science
- Automation Department [Boumerdes]
- Avansaber Technologies Pvt. Ltd.
- Avans University of Applied Sciences
- Averett University
- Avic Chengdu Civil Aircraft Co. Ltd
- Avid Radiopharmaceuticals
- AVL List GmbH
- Avlos
- Avrasya Yer Bilimleri Enstitüsü = Eurasia Institute of Earth Sciences [Istanbul]
- Axia Value Chain [São Paulo]
- Axon logic
- Axpo Turkey
- Azad University, Science and Research Branch
- Azienda Ospedaliera di Rilievo Nazionale “Antonio Cardarelli”
- Azienda Sanitaria Locale [ROMA]
- Azman Hashim International Business School