Water is necessary to all human activities and to life in general. Because of this, it was made central to all components of the EU Green Deal and to several United Nation Sustainable Development Goals (UN SDGs), starting with SDG6 on « clean water and sanitation ». The Water4All Partnership, cofunded by the European Union within the frame of the Horizon Europe programme, aims at enabling water security for all in the long term through boosting systemic transformations and changes across the entire research – water innovation pipeline, fostering the matchmaking between problem owners and solution providers.