The European Organisation for the Exploitation of Meteorological Satellites is an intergovernmental organisation based in Darmstadt, Germany, currently with 30 Member States (Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom). These States fund the EUMETSAT programs and are the principal users of the systems.

CAMS is one of six services that form Copernicus, the European Union's Earth observation programme which looks at our planet and its environment for the ultimate benefit of all European citizens. CAMS is implemented by the European Centre for Medium-Range Weather Forecasts (ECMWF) on behalf of the European Commission. ECMWF is an independent intergovernmental organisation supported by 34 states ECMWF also operates the Copernicus Climate Change Monitoring Service (C3S).

The European Centre for Medium-Range Weather Forecasts is an independent intergovernmental organisation, producing and disseminating numerical weather predictions to its 34 Member and Co-operating States. They are also a research institute and a 24/7 operational service. They operate the Copernicus Atmosphere Monitoring Service (CAMS) for the Copernicus programme

The European Commission (EC) is an institution of the European Union, responsible for proposing legislation, implementing decisions, upholding the EU treaties and managing the day-to-day business of the EU.

Copernicus is a European system for monitoring the Earth using satellites and in situ sensors. The Earth observation satellites contributing data to Copernicus are split into two groups of missions: the Copernicus Sentinels and the Contributing Missions