‘Operative Ontologies’, a term seeming contradictory at first, assumes that everything that exists is not simply present or given but has been called into being through media and their operations in the most general sense. The IKKM Biennial Conference 2019 therefore investigates the given with regard to the procedures through which it has been made possible, produced, set up, brought into the world and called into being — “switched on” — in the first place.