- TMC Italy
- TRANE
- TRANE SAS
- TSO - Social Theory Research Group
- TTTech Computertechnik AG
- TXT e-Solutions SPA
- TXT eSolutions [Milano]
- Tallinn University of Technology
- Tampere University of Technology [Tampere]
- Technical Research Centre of Finland
- Technical University of Berlin | Technische Universität Berlin
- Technical University of Kosice
- Technical University of Lisbon
- Technische Universität Braunschweig = Technical University of Braunschweig [Braunschweig]
- Technische Universität Dresden = Dresden University of Technology
- Technische Universität Munchen - Technical University Munich - Université Technique de Munich
- Technological Educational Institute of Central Macedonia
- Technological Educational Institute of Western Greece [Patra]
- Technological Educational Institution of Epirus
- Tecnalia [San Sebastián]
- Tecnológico Nacional de México|TES de Chalco
- Tecnológico de Monterrey = Monterrey Institute of Technology
- Terveystalo Oy
- Tetra Pak Packaging Solutions
- The Irish Software Engineering Research Centre
- The Irish Times Ltd. [Dublin]
- The Netherlands Organisation for Applied Scientific Research
- The University of Sydney
- Tongji University
- Toulouse Business School
- Toulouse Mind & Brain Institut
- Tractebel engineering
- Transformator Design AB
- Turin Polytechnic University [Tashkent]
- Télé-université du Québec
- the Russian Academy of Sciences [Moscow, Russia]
- thingminds