- Tallinn University of Technology
- Tata Consultancy Services Limited
- Tata Consultancy Services Research
- Technical University of Lisbon
- Technische Universität Dresden = Dresden University of Technology
- Technische Universität Kaiserslautern
- Technische Universität Munchen - Technical University Munich - Université Technique de Munich
- Technological Center for the Ceramic and Glass
- The Enterprise Engineering Company 2