| Princeton University (Princeton) |
 United States |
Academic / research |
1756 |
0 |
0 |
0 |
| Process Fab Inc (Process Fab) |
United States |
Commercial |
|
0 |
0 |
0 |
| Production Corporation Polyot (NP) |
 Russia |
Commercial |
1941 |
0 |
0 |
1 |
| Progress Factory (Progress) |
Russia |
Government / agency |
1961 |
0 |
0 |
0 |
| Progress Rocket Space Center (PRSC) |
Russia |
Commercial |
1996 |
0 |
0 |
16 |
| Project MESOS, K. Daugirdas (Project MESOS) |
United States |
Academic / research |
2022 |
0 |
0 |
0 |
| ProtoStar (PROTO) |
Bermuda |
Commercial |
2001 |
0 |
0 |
0 |
| PT Telkom Indonesia (TLKM) |
 Indonesia |
Commercial |
1856 |
0 |
0 |
0 |
| PT Telkom Satellite Indonesia (Telkomsat) |
Indonesia |
Commercial |
1995 |
0 |
0 |
0 |
| Pumpkin Inc. (Pumpkin) |
United States |
Commercial |
2009 |
0 |
0 |
0 |
| Purdue University (Purdue) |
United States |
Academic / research |
1869 |
0 |
0 |
0 |
| Pyras Technology Inc (Pyras Tech) |
 Taiwan |
Commercial |
2013 |
0 |
0 |
0 |
| Qatar University (Jami'at Qatar) |
 Qatar |
Academic / research |
1973 |
0 |
0 |
0 |
| QBUS Consortium (Stanford/APL/UC Boulder/U MIch/U del Turabo) (QBUS) |
United States |
Academic / research |
2014 |
0 |
0 |
0 |
| Qilian Mountain National Nature Reserve Management Center (Qilian Reserve) |
 China |
Government / agency |
1988 |
0 |
0 |
0 |
| Qinetiq (Qinetiq) |
 United Kingdom |
Commercial |
2001 |
0 |
0 |
0 |
| Qingteng University (Qingteng daxue) |
China |
Commercial |
2015 |
0 |
0 |
0 |
| Qizhong Group (Qizhou Group) |
China |
Commercial |
2018 |
0 |
0 |
0 |
| Qosmosys (Qosmosys) |
 Singapore |
Commercial |
2020 |
0 |
0 |
0 |
| QPS Research Institute (iQPS) |
 Japan |
Commercial |
2005 |
0 |
0 |
0 |
| Quantum Space (Quantum Space) |
United States |
Commercial |
2020 |
0 |
0 |
0 |
| Qubitrium (Ozeygin U.) (Qubitrium) |
 Turkey |
Commercial |
2020 |
0 |
0 |
0 |
| Queen Mary Westfield College, University of London (QMW) |
United Kingdom |
Academic / research |
|
0 |
0 |
0 |
| Queen's University (Kingston, Ontario) (Queens) |
 Canada |
Academic / research |
1841 |
0 |
0 |
0 |
| Queen's University, Belfast (QUB) |
United Kingdom |
Academic / research |
1849 |
0 |
0 |
0 |
| Quetzsat S.A. de C.V (Quetzsat) |
 Mexico |
Commercial |
2011 |
0 |
0 |
0 |
| R2 Space (R2 Space) |
United States |
Commercial |
2019 |
0 |
0 |
0 |
| Radio Amateur Society of Thailand (RAST) |
 Thailand |
Academic / research |
1963 |
0 |
0 |
0 |
| Radio Research Laboratory, NTT (RRL) |
Japan |
Government / agency |
1952 |
0 |
0 |
0 |
| Rafael Advanced Defense Systems Ltd. (Rafael) |
 Israel |
Commercial |
1965 |
0 |
0 |
0 |
| Rapidtek Technologies Inc (Rapidtek) |
Taiwan |
Commercial |
2015 |
0 |
0 |
0 |
| Raymond Engineering Laboratories (Raymond EL) |
United States |
Commercial |
1957 |
0 |
0 |
0 |
| Raytheon Santa Barbara Research Corp. (SBRC) |
United States |
Commercial |
1997 |
0 |
0 |
0 |
| Raytheon Space and Information Systems (Raytheon) |
United States |
Commercial |
|
0 |
0 |
0 |
| RCA Alaska Communications Inc. (Alascom) (RCA Alascom) |
United States |
Commercial |
1970 |
0 |
0 |
0 |
| RCA Astro Electronics (Astro Space) (RCA/East Windsor) |
United States |
Commercial |
1957 |
0 |
0 |
0 |
| RCA Victor Ltd. (RCA Victor) |
Canada |
Commercial |
1958 |
0 |
0 |
0 |
| Reaction Engines Ltd. (REL) |
United Kingdom |
Commercial |
|
0 |
0 |
0 |
| Reaction Motors Incorporated (Denville) (RMI) |
United States |
Commercial |
1955 |
0 |
0 |
0 |
| Reaction Motors Incorporated, Picatinny Arsenal (RMI) |
United States |
Commercial |
1946 |
0 |
0 |
0 |
| Reaction Motors Incorporated, Pompton Plains (RMI) |
United States |
Commercial |
1942 |
0 |
0 |
0 |
| Reaktivniy nauchno-issledovatel'niy institut (RNII) |
|
Government / agency |
1945 |
0 |
0 |
0 |
| Reaktor Space Lab Ltd (Reaktor Space) |
 Finland |
Commercial |
2016 |
0 |
0 |
0 |
| Reflex Aerospace (Reflex) |
 Germany |
Commercial |
2021 |
0 |
0 |
0 |
| Regional African Satellite Communication Organization (RASCOM) |
 Mauritius |
Commercial |
|
0 |
0 |
0 |
| Republic Aircraft (Republic) |
United States |
Commercial |
1939 |
0 |
0 |
0 |
| Research Council of Norway (Forsk) |
 Norway |
Government / agency |
1993 |
0 |
0 |
0 |
| Research Radio Institute (Radiophysical Research Inst.) (RRI) |
|
Government / agency |
1956 |
0 |
0 |
0 |
