In a best-effort organization like CEOS, people, energy, and ideas matter. CEOS depends on its active Members and Associates (collectively known as “CEOS Agencies”) to ensure that key activities have sufficient human resources and seamless leadership at all levels. CEOS Agencies:
- Provide leadership for the Plenary, SIT, Working Groups, and Virtual Constellations
- Power and sustain CEOS activities
- Generate new and innovative ideas and initiatives
Agencies also benefit from CEOS participation as they take part in collaborative missions/data systems and global initiatives to benefit society. CEOS Agencies work together to accomplish specific goals relevant to their own agency and mission priorities.
CEOS Members and Associates are listed below.
34 Members
| Organization | Headquarters Location | Join Date | Principal (P) Contact (C) Secretariat (S) |
|---|---|---|---|
 Agenzia Spaziale Italiana (ASI) | Italy | 1986 |
|
 Canadian Space Agency (CSA) | Canada | 1984 |
|
 Centre National d'Etudes Spatiales (CNES) | France | 1984 |
|
 Centro para Desarrollo Tecnólogico Industrial (CDTI) | Spain | 2007 |
|
 China Academy of Space Technology (CAST) | China | 1993 |
|
 China Center for Resources Satellite Data and Applications (CRESDA) | China | 2007 |
|
 Comisión Nacional de Actividades Espaciales (CONAE) | Argentina | 1999 |
|
 Commonwealth Scientific and Industrial Research Organisation (CSIRO) | Australia | 1989 |
|
 Deutsches Zentrum für Luft-und Raumfahrt (DLR) | Germany | 1986 |
|
 European Commission (EC) | Belgium | 1994 |
|
 European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) | Germany | 1989 |
|
 European Space Agency (ESA) | Europe | 1984 |
|
 Geo-Informatics and Space Technology Development Agency (GISTDA) | Thailand | 2001 |
|
 Indian Space Research Organisation (ISRO) | India | 1984 |
|
 Instituto Nacional de Pesquisas Espaciais (INPE) | Brazil | 1984 |
|
 Japan Aerospace Exploration Agency/Ministry of Education, Culture, Sports, Science, and Technology (JAXA/MEXT) | Japan | 1984 |
|
 Korea Aerospace Research Institute (KARI) | Republic of Korea | 2001 |
|
 Korea Meteorological Administration (KMA) | Republic of Korea | 2016 |
|
 National Aeronautics & Space Administration (NASA) | USA | 1984 |
|
 National Institute of Environmental Research (NIER) | Republic of Korea | 2018 |
|
 National Oceanic and Atmospheric Administration (NOAA) | USA | 1984 |
|
 National Remote Sensing Center of China (NRSCC) | China | 1993 |
|
 National Satellite Meteorological Center/China Meteorological Administration (NSMC/CMA) | China | 2010 |
|
 National Space Research and Development Agency (NASRDA) | Nigeria | 2004 |
|
 Netherlands Space Office (NSO) | Netherlands | 2011 |
|
 Roscosmos State Corporation for Space Activities (Roscosmos) | Russia | 1992 |
|
 Russian Federal Service for Hydrometeorology and Environmental Monitoring (ROSHYDROMET) | Russia | 1992 |
|
 South African National Space Agency (SANSA) | South Africa | 2010 |
|
 State Space Agency of Ukraine (SSAU) | Ukraine | 1993 |
|
 TÜBİTAK Space Technologies Research Institute (TÜBİTAK UZAY) | Turkey | 2006 |
|
 United Arab Emirates Space Agency (UAESA) | United Arab Emirates | 2018 |
|
 United Kingdom Space Agency (UKSA) | United Kingdom | 1986 |
|
 United States Geological Survey (USGS) | USA | 2000 |
|
 Vietnam Academy of Science and Technology / Vietnam National Space Center (VAST/VNSC) | Vietnam | 2013 |
|
30 Associate Members
| Organization | Headquarters Location | Join Date | Principal (P) Contact (C) Secretariat (S) |
|---|---|---|---|
 Agence Gabonaise d'Etudes et d'Observations Spatiales (AGEOS) | Gabon | 2015 |
|
 Agencia Espacial Mexicana (AEM) | Mexico | 2015 |
|
 Belgian Science Policy Office (BELSPO) | Belgium | 1992 |
|
 Bureau of Meteorology (BOM) | Australia | 2015 |
|
| Canada Centre for Mapping and Earth Observation (CCMEO) | Canada | 1990 |
|
| Earth Systems Science Organisation (ESSO) | India | 2012 |
|
 Environment and Climate Change Canada (ECCC) | Canada | 2023 |
|
 European Centre for Medium-Range Weather Forecasts (ECMWF) | United Kingdom | 2021 |
|
 Geoscience Australia (GA) | Australia | 2013 |
|
 Global Climate Observing System (GCOS) | Switzerland | 1992 |
|
 Global Geodetic Observing System (GGOS) | International | 2011 |
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 Global Ocean Observing System (GOOS) | France | 1992 |
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| Global Terrestrial Observing System (GTOS) | Italy | 1997 |
|
 Intergovernmental Oceanographic Commission (IOC) | France | 1991 |
|
 International Ocean Colour Coordinating Group (IOCCG) | Canada | 2000 |
|
 International Science Council (ISC) | France | 1991 |
|
 International Society of Photogrammetry and Remote Sensing (ISPRS) | United Kingdom | 1998 |
|
 Malaysian Space Agency (MYSA) | Malaysia | 2016 |
|
 Norwegian Space Agency (NOSA) | Norway | 1990 |
|
 Polska Agencja Kosmiczna (POLSA) | Poland | 2020 |
|
 Portuguese Space Agency (Portugal Space) | Portugal | 2021 |
|
 South African Council for Scientific and Industrial Research/Satellite Applications Centre (CSIR/SAC) | South Africa | 1998 |
|
 Swedish National Space Agency (SNSA) | Sweden | 1991 |
|
 United Nations Economic and Social Commission for Asia and the Pacific (ESCAP) | Thailand | 1997 |
|
 United Nations Educational, Scientific and Cultural Organization (UNESCO) | France | 2002 |
|
 United Nations Environment Programme (UNEP) | Kenya | 1992 |
|
 United Nations Food and Agriculture Organization (FAO) | Italy | 1994 |
|
 United Nations Office for Outer Space Affairs (UNOOSA) | Austria | 1994 |
|
 World Climate Research Programme (WCRP) | Switzerland | 1991 |
|
 World Meteorological Organization (WMO) | Switzerland | 1991 |
|