EGO – the European Gravitational Observatory – a consortium under Italian law, was created by 2 national research organisations: Centre Nationale de Recherche Scientifique (CNRS), France and Instituto Nuctionale de Fisica Nucleare (INFN), Italy in 2002. Since 2006 the Dutch National Laboratory NIKHEF has joined the Consortium. EGO (https://www.ego-gw.it/index.aspx) is located near Pisa and its main purpose is to ensure the long term scientific exploitation of the VIRGO(http://www.virgo-gw.eu/) interferometric antenna for Gravitational Wave (GW) detection as well as to foster European and Global collaboration in the field. VIRGO is a 3-km long interferometer and it is exploited by a collaboration involving 19 laboratories with more than 250 scientists in France, Netherlands, Poland and Hungary. Virgo was fully involved in the GW research that allowed the first detection of GW coming from a Binary Black Hole merger, in 2015, the Binary Neutron Merger in 2017 that is acclaimed as the inaugural event of Multi-messenger Astronomy. These activities were considered the events of the year in 2016 and 2017 respectively for Nature and Science magazines and gave the 2017 Nobel prize in Physics.