Remarks
The EUREF Permanent Network (EPN) is a voluntary federation of over 100 self-funding agencies, universities, and research institutions in more than 30 European countries. They work together to maintain the European Terrestrial Reference System (ETRS89) which is the single Europe-wide standard coordinate reference system adopted by the European Commission (ref COGI action decision 2003 - F/GIS/69/EN). In addition, the INSPIRE Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services established - among other requirements - that the ETRS89 shall be used for the referencing of spatial data sets in INSPIRE.
Contributors: https://www.epncb.oma.be/_organisation/contributors.php
Collaborations: https://www.epncb.oma.be/_organisation/collaborations.php