| Costa Rica Institute of Technology (TEC Costa Rica) |
 Costa Rica |
Academic / research |
1971 |
0 |
0 |
0 |
| Council on Scientific and Industrial Research, South Africa (CSIR) |
 South Africa |
Government / agency |
1945 |
0 |
0 |
0 |
| Cowboy Space Corp. (Cowboy) |
 United States |
Commercial |
2024 |
0 |
0 |
0 |
| Creotech Instruments S.A. (CreoTech) |
 Poland |
Commercial |
|
0 |
0 |
0 |
| Croatian Space Agency (HSA) |
 Croatia |
Government / agency |
|
0 |
0 |
0 |
| Cryptosat (Cryptosat) |
United States |
Commercial |
2020 |
0 |
0 |
0 |
| CSA Engineering (CSA Eng.) |
United States |
Commercial |
1982 |
0 |
0 |
0 |
| CShark S.r.l. (CShark) |
 Italy |
Commercial |
|
0 |
0 |
0 |
| CTA Space Systems Inc (CTA) |
United States |
Commercial |
1992 |
0 |
0 |
0 |
| Cuban Revolutionary Air and Air Defense Force (Cuban AF) |
 Cuba |
Government / agency |
1959 |
0 |
0 |
0 |
| Cubesat Aerospace LLP (Cubesat Aero) |
 India |
Commercial |
2021 |
0 |
0 |
0 |
| CubeSpace (CubeSpace) |
South Africa |
Commercial |
2015 |
0 |
0 |
0 |
| Cubic Corp. (Cubic) |
United States |
Commercial |
1951 |
0 |
0 |
0 |
| Culham Laboratory (Culham) |
 United Kingdom |
Government / agency |
1963 |
0 |
0 |
0 |
| Curtin University (Curtin U) |
 Australia |
Academic / research |
1986 |
0 |
0 |
0 |
| Cutler-Hammer Airborne Instruments Laboratory (Cutler-Hammer/AIL) |
United States |
Commercial |
1958 |
0 |
0 |
0 |
| Cuyo National Univ., San Juan (UN Cuyo-SanJuan) |
 Argentina |
Academic / research |
1947 |
0 |
0 |
0 |
| CVC Electronic sro (CVC Electronic) |
 Czechia |
Commercial |
2024 |
0 |
0 |
0 |
| Czech Academy of Sciences (AN Czechia) |
Czechia |
Government / agency |
1992 |
0 |
0 |
0 |
| Czechoslovak Air Force (CSSR AF) |
|
Government / agency |
1918 |
0 |
0 |
0 |
| D\'el\'egation Minist\'erielle pour l'Armement (DMA) |
 France |
Government / agency |
1961 |
0 |
0 |
0 |
| Daimler-Benz Aerospace (DASA)-Friedrichsafen (Dornier GmBH) (DASA-F) |
 Germany |
Commercial |
1995 |
0 |
0 |
0 |
| Daimler-Benz Aerospace Raumfahrt-Infrastruktur (DASA RI) (DASA-RI) |
Germany |
Commercial |
1989 |
0 |
0 |
0 |
| Daimler-Chrysler Aerospace (DASA)-Friedrichsafen (DCA-F) |
Germany |
Commercial |
1998 |
0 |
0 |
0 |
| Dalhousie University (Dalhousie) |
 Canada |
Academic / research |
1818 |
0 |
0 |
0 |
| Dalian University of Technology (Dalian UT) |
 China |
Academic / research |
1949 |
0 |
0 |
0 |
| Danish Space Research Institute (DSRI) |
 Denmark |
Government / agency |
1968 |
0 |
0 |
0 |
| Dartmouth-Hitchcock Medical Center (DHMC) |
United States |
Academic / research |
1797 |
0 |
0 |
0 |
| DASA Jena Optronic GmbH (DJO) (Jena) |
Germany |
Commercial |
1991 |
0 |
0 |
0 |
| David Clark Co. (D. Clark) |
United States |
Commercial |
1935 |
0 |
0 |
0 |
| Dawan District Inst. for IC and System Applications (Dawan DRI) |
China |
Government / agency |
2018 |
0 |
0 |
0 |
| De Havilland Engine Co. (De Havilland Eng) |
United Kingdom |
Commercial |
1946 |
0 |
0 |
0 |
| De Havilland, Toronto (Special Products/Appl. Research Div) (De Hav) |
Canada |
Commercial |
1928 |
0 |
0 |
0 |
| dearMoon (dearMoon) |
United States |
Commercial |
2021 |
0 |
0 |
0 |
| Deep Blue Aerospace (DBA Space) |
China |
Commercial |
2016 |
0 |
0 |
1 |
| Deep Space Industries (DSI) |
United States |
Commercial |
|
0 |
0 |
0 |
| Defence Science and Technology Laboratory (DSTL UK) |
United Kingdom |
Government / agency |
2001 |
0 |
0 |
0 |
| Defense Materiel Adminstration (FMV) |
 Sweden |
Government / agency |
1968 |
0 |
0 |
0 |
| Defense Research and Development Lab (DRDL) |
India |
Government / agency |
1962 |
0 |
0 |
0 |
| Defense Research and Development Organization (DRDO) |
India |
Government / agency |
1958 |
0 |
0 |
0 |
| Defense Science and Technology Organization, Weapons Sys Div. (DSTO) |
Australia |
Government / agency |
1978 |
0 |
0 |
0 |
| Defense Science Institute (NK DSI) |
 North Korea |
Government / agency |
|
0 |
0 |
0 |
| Defense Systems Inc (DSI) |
United States |
Commercial |
1984 |
0 |
0 |
0 |
| Deimos Space S.L. (Deimos Space) |
 Spain |
Commercial |
2001 |
0 |
0 |
0 |
| Deloitte Cyber, Colorado Springs (Deloitte) |
United States |
Commercial |
|
0 |
0 |
0 |
| Delta V Space Technologies Inc. (Delta V) |
 Turkey |
Government / agency |
2017 |
0 |
0 |
0 |
| Delta-UTEC Space Research (Delta-UTEC) |
 Netherlands |
Commercial |
1996 |
0 |
0 |
0 |
| Department of Aerospace Science and Technology |
 Brazil |
Government / agency |
1953 |
0 |
0 |
1 |
