Europe’s Earth Observation sector has long suffered from fragmented ground-segment systems, creating inefficiencies and barriers for collaboration. Domino-E addresses this challenge by introducing a federated, modular architecture built on interoperable “Dominoes.” This approach lowers costs, enables SMEs to compete, accelerates deployment, and strengthens Europe’s sovereignty in EO. By dismantling silos without compromising control, Domino-E ensures Europe can innovate faster and remain competitive on the global stage.