A great session at the PHEMS Spring Meet-Up, where we discussed how to move the Paediatric Health Data Space (PHDS) towards long-term sustainability. Josep Lluís Falcó, CEO at GENESIS Biomed, shared key takeaways from the Business Hackathon of the Horizon Europe PHEMS funded project, an initiative that brought together clinicians, hospital managers, industry representatives and innovation stakeholders to explore sustainable service models for the future Paediatric Health Data Space (PHDS).A very interesting session to continue reflecting on how health data spaces can support research, improve health system efficiency and generate better outcomes for children and young people.