During the last two decades, Europe has invested significantly in the development of e-infrastructures that support scientific research and the commercialisation of resulting services. In parallel to the thematic investments under the European Strategic Framework for Research Infrastructure (ESFRI), horizontal e-infrastructures have gained the trust of the wider research community. GÉANT, PRACE, EGI, EUDAT and OpenAIRE are the most prominent. These empower scientific communities with ubiquitous, trusted and seamless access to facilities, resources and collaboration tools, bringing to them the power of technology for communication, computation, storage, access and instrumentation.