| Subject | English | Thesaurus |
| mil., abbr. | Advanced Space Program Office | ASPO |
| abbr., scottish | Advanced Space Technology Program | ASTP (USA) |
| abbr., astronaut., mil. | Advanced Space Transportation Program | ASTP |
| mil., abbr. | Army Space Exploitation Demo Program | ASEDP |
| mil., abbr. | Army Space Exploitation Demonstration Program | ASEDP |
| mil., abbr. | Army Space Exploitation Demonstration Programs | ASDEP |
| mil., abbr. | Army Space Program Office | ASPO |
| mil., abbr. | Automated Program to Project AIT Training Space | APPATS |
| abbr., astronaut. | Canadian Space Programme | CSP |
| abbr., astronaut., mil. | Defense Meteorological Space Program | DMSP |
| mil., abbr. | Defense Space Reconnaissance Program | DSRP |
| abbr. | European Aeronautic Defense and Space Co | EADS (Olga Okuneva) |
| abbr., astronaut. | Future European Space Transportation Investigation Programme | FESTIP |
| abbr., scottish | Lockheed Missiles & Space Co | LMSC (Inc. (USA)) |
| abbr., scottish | Lockheed Space Operations Co. | LSOC (USA) |
| abbr. | Manned Space Flight Program | MSFP |
| abbr., scottish | McDonnell Douglas Space Systems Co. | MDSSC (USA) |
| abbr. | National Space Program | NSP |
| meteorol., abbr. | National Space Weather Program | NSWP |
| mil., abbr. | Space Applications Technology Program | SATP |
| ocean., abbr. | Space Environment Services Center | SESC |
| meteorol., abbr. | Space Environmental Technology Transition | SETT |
| abbr., scottish | Space Experiment Support Program | SESP (USAF) |
| mil., abbr. | Space Program Analysis and Review Council | SPARC |
| NASA, abbr. | Space Programs Information Coalition | SPIC |
| IT, abbr. | Space Services Incorporated | SSI (Corporate name, Space) |
| abbr., astronaut. | Space Services Incorporated | SSI |
| abbr., astronaut. | Space Shuttle Main Engine program | SSME |
| abbr., astronaut., mil. | Space Surveillance Network Improvement Program | SSNIP |
| abbr., scottish | Space Test Payload / Program | STP (USA) |
| abbr., astronaut. | Technology Outreach Programme on Space for University Educators | TOPS |
| NASA, abbr. | Vlbi Space Observatory Program | VSOP |
| abbr., astronaut. | VLBI Space Observatory Programme | VSOP (Japan) |
