- MELAB, Swedish Business School at Örebro University
- Maastricht University [Maastricht]
- Machine Learning and Computational Biology
- Macquarie University
- Madurai Kamaraj University
- Mahindra Satyam
- Manav Rachna College of Engineering India
- Manchester Business School
- Manchester Metropolitan University
- Manchester Metropolitan University Business School
- Manipal Institute of Technology
- Maria Curie-Sklodowska University
- Marie Curie-Sklodowska University
- Martin-Luther-University Halle-Wittenberg
- Masaryk University [Brno]
- Massachusetts Institute of Technology
- Maulana Abul Kalam Azad University of Technology - West Bengal University of Technology
- Max Planck Institute for Informatics [Saarbrücken]
- McGill University = Université McGill [Montréal, Canada]
- McMaster University [Hamilton, Ontario]
- Mechanical and Electrical Engineering Group
- Mecânica Industrial de Coimbra [Taveiro]
- Medical University Graz
- Medical University of Białystok
- Medical University of Sofia
- Meghnad Saha Institute of Technology [Kolkata]
- Menofia University
- Microsoft Corporation [Redmond, Wash.]
- Microsoft Corporation [Redmond]
- Microsoft Research [Redmond]
- Mid Sweden University
- Middle East Technical University [Ankara]
- Middlesex University
- Middlesex University [London]
- Miguel Torga Institute [Coimbra]
- Military Communication Institute [Zegrze]
- Military University of Technology
- Ministry of Defense [The Hague]
- Ministry of Economics and Communication [Suur-Ameerika]
- Ministry of Justice [The Hague]
- Ministry of Mobility and Public Works
- Ministry of Public Security
- Ministry of Transparency and Comptroller General
- Mokpo University
- Molecular Imaging Research Center [Fontenay-aux-Roses]
- Monash University [Clayton]
- Monash University [Malaysia]
- Motilal Nehru National Institute of Technology Allahabad
- MuElec
- Multimedia Information Systems Research Group [Vienna]
- Multimedia, InfoRmation systems and Advanced Computing Laboratory
- Munich Aerospace [Taufkirchen]
- Munich Network Management Team
- mySociety [London]