In this interview, Jean-Marc Piéplu, the EGNOS Exploitation Program Manager at the European GNSS Agency, discusses the role of EU Spine Operating Galileo and EGNOS within the European Geostationary Navigation Overlay Service. Editor in Chief Emma Gatti and Jean Marc discussed how the European GNSS Service Centre and the Galileo Reference Centres contribute to the provision of the Galileo Service, and the services provided by EUSPA.