The EUDAT Collaborative Data Infrastructure is one of the largest infrastructures of integrated data services and resources supporting research in Europe. It is sustained by a network of more than 20 European research organisations, data and computing centres that on September 2016 have signed an agreement to maintain the EUDAT CDI for the next 10 years and in 2018 have supported the establishment of the limited liability company EUDAT Ltd. This infrastructure and its services have been developed in close collaboration with over 50 research communities spanning across many different scientific disciplines and involved at all stage of the design process.