The Research Data Alliance With over 9000 members from 137 countries, RDA provides neutral space where its members can come together to work towards Research Data Sharing without barriers. • The RDA Vision: Researchers and innovators openly share data across technologies, disciplines, and countries to address the grand challenges of society. • The RDA Mission: RDA builds the social and technical bridges that enable open sharing and re-use of data. RDA at large and RDA Europe RDA addresses the need for open and interoperable sharing of research data and builds the social, technical and cross-disciplinary links to enable such sharing on a global scale. An RDA Europe branch has been developed (https://www.rd-alliance.org/rda-Europe); Launched in March 2018, RDA Europe 4.0 is mandated to become the centrepiece for an EU Open Science Strategy, through a dedicated open cascading grant process. Thanks to EU H2020 funding a network of national nodes (10 countries so far), specific actions (early career program, experts, adoption grants) and RDA ambassador program (https://www.rd-alliance.org/rda-disciplines/rda-europe-ambassadors) were set up. French node (https://www.rd-alliance.org/groups/rda-france): CNRS in charge, supported by Ministère de l'Enseignement Supérieur, de la Recherche et de l'Innovation (MESRI) in the Framework of the National Plan for Open Science. Participation in RDA is open to anyone who agrees to its guiding principles of openness, consensus, balance and harmonization, with a community-driven, non-profit approach. Individual membership is free: https://www.rd-alliance.org/user/register RDA Recommendations and outputs RDA Outputs are the technical and social infrastructure solutions developed by RDA Working Groups or Interest Groups that enable data sharing, exchange, and interoperability. They have an important impact on: • Solving data sharing problems • Adoption in infrastructure environments by individuals, projects and organizations To improve global data sharing, exchange and interoperability, RDA works on raising awareness and expanding the adoption of these outputs across all regions of the world. Solutions and benefits for organizations performing research and their staff • RDA offers a neutral forum for research data interoperability; • RDA is a global platform and network offering unique interactive and collaborative opportunities; • RDA groups produce guidelines, tools, methods and infrastructures for locating, understanding and reusing data; • Access to an international forum facilitating harmonization integration and/or implementation of standards and methods for interoperability; • Opportunities to partner with expertise to augment specific communities of interest and corresponding data interoperability solutions; • A means of managing institutional risk regarding data management and data quality obligations; • Access to an extraordinary network of international colleagues and organizations.