| Berthold Seliger Forschungs- und Entwicklungsgesellschaft mbH (Seliger) |
 Germany |
Commercial |
1961 |
0 |
0 |
0 |
| Besxar Space Industries (Besxar) |
 United States |
Commercial |
2023 |
0 |
0 |
0 |
| Beyond Gravity, Emmen (Beyond Gravity) |
 Switzerland |
Commercial |
2017 |
0 |
0 |
0 |
| Bigelow Aerospace (Bigelow) |
United States |
Commercial |
1999 |
0 |
0 |
0 |
| Binariang Satellite Systems Sdn. Bhd. (Binariang) |
 Malaysia |
Commercial |
1993 |
0 |
0 |
0 |
| BIRA-IASB Institut d'Aeronomie Spatiale de Belgique (IASB) |
 Belgium |
Academic / research |
1964 |
0 |
0 |
0 |
| Birmingham University (Bir) |
 United Kingdom |
Academic / research |
|
0 |
0 |
0 |
| BlackBridge (BlackBridge) |
Germany |
Commercial |
2013 |
0 |
0 |
0 |
| Blackwing Space (Blackwing) |
United States |
Commercial |
2025 |
0 |
0 |
0 |
| Blue Canyon Technologies (Blue Canyon) |
United States |
Commercial |
2008 |
0 |
0 |
0 |
| Bochum Ruhr University (Bochum) |
Germany |
Academic / research |
1962 |
0 |
0 |
0 |
| BONUM-1 Co., Media Most (BONUM-1) |
 Russia |
Commercial |
1996 |
0 |
0 |
0 |
| Bonyan Danesh Shargh (Bonyan Danesh) |
 Iran |
Commercial |
|
0 |
0 |
0 |
| Booz Allen Hamilton (Booz Allen) |
United States |
Commercial |
1914 |
0 |
0 |
0 |
| BPD Defense and Space (BPD) |
 Italy |
Commercial |
1912 |
0 |
0 |
0 |
| BRAC University (BRAC Univ.) |
 Bangladesh |
Academic / research |
2001 |
0 |
0 |
0 |
| Braunschweig Technical University (Braunschweig) |
Germany |
Academic / research |
1968 |
0 |
0 |
0 |
| Brevard Community College (BrevardCC) |
United States |
Academic / research |
1960 |
0 |
0 |
0 |
| Brigham Young University (BYU) |
United States |
Academic / research |
1875 |
0 |
0 |
0 |
| Bristol Aero Engines (Bristol Aero Eng) |
United Kingdom |
Commercial |
1956 |
0 |
0 |
0 |
| Bristol Aerojet UK, Banwell Factory (BAJ UK) |
United Kingdom |
Commercial |
1959 |
0 |
0 |
0 |
| Bristol Aeroplane Co. (Canada) (Bristol Ae.) |
 Canada |
Commercial |
1954 |
0 |
0 |
0 |
| Bristol Aeroplane Company (Bristol/Banwell) |
United Kingdom |
Commercial |
1910 |
0 |
0 |
0 |
| Bristol Aerospace Company (BAC) |
Canada |
Commercial |
1967 |
0 |
0 |
0 |
| Bristol Engine Co. (Bristol Engines) |
United Kingdom |
Commercial |
1918 |
0 |
0 |
0 |
| Bristol Siddeley (Coventry) (Bristol Siddeley) |
United Kingdom |
Commercial |
1960 |
0 |
0 |
0 |
| Bristol Siddeley (Filton) (Bristol Siddeley) |
United Kingdom |
Commercial |
1958 |
0 |
0 |
0 |
| Bristol Siddeley Engines Ltd (BSEL) Leavesden (Bristol Siddeley) |
United Kingdom |
Commercial |
1959 |
0 |
0 |
0 |
| Bristol University (Bristol) |
United Kingdom |
Academic / research |
1909 |
0 |
0 |
0 |
| British Aircraft Company (BAC) |
United Kingdom |
Commercial |
1960 |
0 |
0 |
0 |
| British Antarctic Survey (BAS) |
United Kingdom |
Government / agency |
1962 |
0 |
0 |
0 |
| British National Committee for Space Research, Royal Society (BNCSR) |
United Kingdom |
Government / agency |
1958 |
0 |
0 |
0 |
| British Satellite Broadcasting (BSB) |
United Kingdom |
Commercial |
1986 |
0 |
0 |
0 |
| British Sky Broadcasting (BSkyB) |
United Kingdom |
Commercial |
1990 |
0 |
0 |
0 |
| Brown University (Brown Univ.) |
United States |
Academic / research |
1764 |
0 |
0 |
0 |
| Brunswick Corp. (Brunswick Corp.) |
United States |
Commercial |
1980 |
0 |
0 |
0 |
| Bulgarian Air Force (Bulgarian AF) |
 Bulgaria |
Government / agency |
1906 |
0 |
0 |
0 |
| Bulgarian Space Agency (SRI-BAS) |
Bulgaria |
Government / agency |
1993 |
0 |
0 |
0 |
| Busek Co. Inc. (Busek) |
United States |
Commercial |
1985 |
0 |
0 |
0 |
| C. V. Raman Global University (Raman Global U) |
 India |
Academic / research |
1997 |
0 |
0 |
0 |
| Cabinet Intelligence and Research Office (Naichō) |
 Japan |
Government / agency |
1986 |
0 |
0 |
0 |
| Cablevision Systems Corp. (Cablevision) |
United States |
Commercial |
1973 |
0 |
0 |
0 |
| CACI International Inc. (CACI) |
United States |
Commercial |
1962 |
0 |
0 |
0 |
| California Institute of Technology (Caltech) |
United States |
Academic / research |
1891 |
0 |
0 |
0 |
| California State University, Northridge (CSUN) |
United States |
Academic / research |
1958 |
0 |
0 |
0 |
| Canadian Armament Researcha and Development Establishment (CARDE) |
Canada |
Government / agency |
1945 |
0 |
0 |
0 |
| Canadian Arrow (Canadian Arrow) |
Canada |
Commercial |
|
0 |
0 |
0 |
| Canadian Bristol Aerojet Ltd (BAJ CA) |
Canada |
Commercial |
1962 |
0 |
0 |
0 |
