- Technical University Hamburg Harburg [Hamburg]
- Technical University of Ostrava [Ostrava]
- Technicolor
- Technicolor R & I [Cesson Sévigné]
- Technische Universität Darmstadt - Technical University of Darmstadt
- Technische Universität Dresden = Dresden University of Technology
- Technische Universität Munchen - Technical University Munich - Université Technique de Munich
- Tecnalia Research & Innovation
- Telecommunications Research Center Vienna [Autriche]
- Telekom Austria Group
- Telenor ASA Global Development
- Telenor Group