- Takuvik International Research Laboratory
- Takuvik Joint International Laboratory ULAVAL-CNRS
- Tallinn University
- Tallinn University of Technology
- Tara Expéditions
- Tara Ocean Foundation
- Tartu Observatory
- TBM environnement
- Technical University of Berlin | Technische Universität Berlin
- Technische Universität Darmstadt - Technical University of Darmstadt
- Technische Universität Dresden = Dresden University of Technology
- Technische Universität Munchen - Technical University Munich - Université Technique de Munich
- Tectonics Observatory
- Tectonique reliefs et bassins
- Tel Aviv University
- Télécom Bretagne
- Télécom SudParis
- Telespazio
- Terres Australes et Antarctiques Françaises
- Territoires, Environnement, Télédétection et Information Spatiale
- Territorial Hospital Centre of New Caledonia
- Texas A&M University [College Station]
- Texas A&M University [Corpus Christi]
- Texas A&M University [Galveston]
- Texas A&M University System
- The American University of Paris
- The Arctic University of Norway [Tromsø, Norway]
- The Beijer Institute of Ecological Economics
- the Climate Data Factory
- The George Washington University
- The Hong Kong Polytechnic University [Hong Kong]
- The Institute of Doctors Engineers and Scientists - IDES
- The James Hutton Institute
- The Leon H. Charney School of Marine Sciences [Haifa]
- The Ohio State University [Columbus]
- The Open University [Milton Keynes]
- The Pew Charitable Trusts
- The Royal Swedish Academy of Sciences
- the Russian Academy of Sciences [Moscow, Russia]
- The School of Geography, Politics and Sociology; Newcastle University
- The Scripps Research Institute [La Jolla, San Diego]
- The Second Institution of Oceanography, State Oceanic Administration, Hangzhou 310012, China
- The Stockholm Resilience Centre
- The Third Institute of Oceanography SOA
- The University Centre in Svalbard
- The University of Newcastle
- The University of New Mexico [Albuquerque]
- The University of Queensland
- The University of Sydney
- The University of Tennessee [Knoxville]
- The University of Texas at San Antonio
- The University of Texas Medical Branch
- The University of the West Indies
- The University of the West Indies (UWI)
- The University of Tokyo
- The University of Western Australia
- The University of Western Australia Oceans Institute and School of Biological Sciences [Australia]
- The UWA Oceans Institute
- The Varda Group
- Thons tropicaux et écosystèmes pélagiques : taxies, interactions et stratégies d'exploitation
- Thünen Institute for Sea Fisheries
- Thünen-Institute of Sea Fisheries = Institut für Seefischerei
- Tianjin University
- Tohoku National Fisheries Research Institute
- Tohoku University [Sendai]
- Tokyo Institute of Technology [Tokyo]
- Tokyo University of Marine Science and Technology
- Tokyo University of Science [Tokyo]
- Tomsk Polytechnic University [Russie]
- Tongji University
- TotalEnergies
- Toulouse Mind & Brain Institut
- Trajectoires - UMR 8215
- Transferts, écoulements, fluides, énergétique
- Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés
- Trier University
- Trinity Centre for Environmental Humanities, Department of History, School of Histories & Humanities, Trinity College Dublin, Dublin, Ireland
- Trinity College Dublin
- TROPO - LATMOS
- Trust-IT Services [Pisa]
- Tsinghua University [Beijing]
- Tufts University [Medford]
- Turing Center for Living Systems
- Tyndall Centre for Climate Change Research
- Tyndall Centre for Climate Change Research and School of Environmental Sciences