The VERTIGO network is constituted by 9 Full and 14 Associated Partners involving academia, research institutions and the private sector from eight European countries. Size and full/associate partner ratio are indispensable in order to train the 13 Early Stage Reaserchers (ESRs) as future leading scientists in the wide field of complex questions around volcanic ash and teach them with a set of complementary skills for a future career in academia as well as in the private sector.