• Committee on Space Research
  
• Eumetsat
  
• European Space Agency (ESA)
  
• European Space Research and Technology Center
  
• European Space Science Committee
  
• European Union
  
• Eutelsat
  
• Inmarsat
  
• INTELSAT
  
• International Astronomical Union
  
• International Astronautical Federation (IAF)
  
• International Space University (ISU)
  
• International Telecommunication Union (ITU)
  
• United Nations Economic and Social Commission for Asia and the Pacific
  
• United Nations Office for Outer Space Affairs