| Supreme Council of Information and Communication Technology, Qatar (ictQATAR) |
 Qatar |
Government / agency |
|
0 |
1 |
0 |
| Swedish Armed Forces (FVM) |
 Sweden |
Government / agency |
1975 |
0 |
1 |
0 |
| Swedish Inst of Space Physics (IRF Kiruna) |
Sweden |
Government / agency |
1987 |
0 |
1 |
0 |
| Swedish National Space Board (SNSB) |
Sweden |
Government / agency |
1972 |
0 |
1 |
0 |
| TALOS (TALOS) |
 Germany |
Commercial |
2022 |
0 |
1 |
0 |
| Tao Zhixing Education Foundation (Taozhi EF) |
 China |
Academic / research |
|
0 |
1 |
0 |
| Tata Advanced Systems Ltd (TASL) |
 India |
Commercial |
2007 |
0 |
1 |
0 |
| Te Punaha Atea Space Institute, University of Auckland (TPA Auckland) |
 New Zealand |
Academic / research |
2019 |
0 |
1 |
0 |
| Team Tumbleweed (Tumbleweed) |
 Austria |
Commercial |
2024 |
0 |
1 |
0 |
| Technische Universiteit Delft (TU Delft) |
 Netherlands |
Academic / research |
1986 |
0 |
1 |
0 |
| Technology Strategy Board, Dept. for Business, Innovation and Skills (UK TSB) |
 United Kingdom |
Government / agency |
2007 |
0 |
1 |
0 |
| Teikyo Scientific University (Teikyo) |
 Japan |
Academic / research |
1931 |
0 |
1 |
0 |
| Telespazio (Telespazio) |
 Italy |
Commercial |
1965 |
0 |
1 |
0 |
| TELNET Holding (Telnet Holding) |
 Tunisia |
Commercial |
1994 |
0 |
1 |
0 |
| TerraXpace, GlobalTelecom (TerraXpace) |
 Malaysia |
Commercial |
2020 |
0 |
1 |
0 |
| Tethers Unlimited, Inc. (TUI) |
 United States |
Commercial |
1994 |
0 |
1 |
0 |
| Texas A&M University (Texas A&M) |
United States |
Academic / research |
1876 |
0 |
1 |
0 |
| Thai Microsatellite (TMSAT) |
 Thailand |
Academic / research |
|
0 |
1 |
0 |
| The Weiss School (Weiss School) |
United States |
Academic / research |
|
0 |
1 |
0 |
| Think Orbital (Think Orbital) |
United States |
Commercial |
2021 |
0 |
1 |
0 |
| Tianhu Data Tech. Co. Ltd. (Tianhui Data) |
China |
Commercial |
2026 |
0 |
1 |
0 |
| Tokyo Metropolitan Coll. Aero. Eng. (TMCAE) |
Japan |
Academic / research |
1962 |
0 |
1 |
0 |
| TransOrbital, Inc (TransOrbital) |
United States |
Commercial |
1999 |
0 |
1 |
0 |
| TriSept Corporation (TriSept) |
United States |
Commercial |
1994 |
0 |
1 |
0 |
| TRL Space (TRL Space) |
 Czechia |
Commercial |
2014 |
0 |
1 |
0 |
| Tron Future Tech (Tron Future Tech) |
 Taiwan |
Commercial |
2018 |
0 |
1 |
0 |
| TrustPoint, Inc. (TrustPoint) |
United States |
Commercial |
2020 |
0 |
1 |
0 |
| Turion Space (Turion Space) |
United States |
Commercial |
2021 |
0 |
1 |
0 |
| Turk Telecom (Turk) |
 Turkey |
Commercial |
1995 |
0 |
1 |
0 |
| Turkish PTT (Turkish PTT) |
Turkey |
Government / agency |
1989 |
0 |
1 |
0 |
| Tyumen State University (TyumGU) |
 Russia |
Academic / research |
1930 |
0 |
1 |
0 |
| U. Alaska Fairbanks (Alaska) |
United States |
Academic / research |
1917 |
0 |
1 |
0 |
| Ufa State Aviation Technical University (USATU) |
Russia |
Academic / research |
1932 |
0 |
1 |
0 |
| UK Science and Engineering Research Council (SERC) |
United Kingdom |
Government / agency |
1981 |
0 |
1 |
0 |
| UK Space Agency (UKSA) |
United Kingdom |
Government / agency |
2010 |
0 |
1 |
0 |
| Ukranian National Space Agency (NKAU) |
 Ukraine |
Government / agency |
1992 |
0 |
1 |
0 |
| Ukranian State Space Agency (DKAU) |
Ukraine |
Government / agency |
2011 |
0 |
1 |
0 |
| United Arab Emirates Armed Forces (UAE AF) |
 United Arab Emirates |
Government / agency |
1951 |
0 |
1 |
0 |
| United Kingdom Space Command (UK Space Command) |
United Kingdom |
Government / agency |
2021 |
0 |
1 |
0 |
| Universidad Popular Autonoma del Estado de Puebla (UPAEP) |
 Mexico |
Academic / research |
1973 |
0 |
1 |
0 |
| Universite du Luxembourg (U Lux.) |
 Luxembourg |
Academic / research |
2003 |
0 |
1 |
0 |
| University of Arizona-Tucson (U. Arizona) |
United States |
Academic / research |
1885 |
0 |
1 |
0 |
| University of Calgary (Calgary) |
 Canada |
Academic / research |
1966 |
0 |
1 |
0 |
| University of California Santa Cruz (UCSC) |
United States |
Academic / research |
|
0 |
1 |
0 |
| University of Cincinatti (Cincinnati) |
United States |
Academic / research |
1819 |
0 |
1 |
0 |
| University of Louisiana-Lafayette (UL-Lafayette) |
United States |
Academic / research |
1999 |
0 |
1 |
0 |
| University of Maine (U Maine) |
United States |
Commercial |
1865 |
0 |
1 |
0 |
| University of New South Wales Center for Space Eng. Research (U. NSW) |
 Australia |
Academic / research |
2011 |
0 |
1 |
0 |
