HELIX Data is one of the services provided by the Hellenic Data Service. Hellenic Data Service, also known as HELIX, is a data catalogue and repository supporting knowledge management and scholarly communication in Greece. It is comprised of a diverse set of services, features and functionalities that facilitates responsible research conduct while easing compliance with Open and FAIR practices in the Greek research area. Moreover, HELIX succeeds in linking digital assets of publications, data and processes together thus contributing to information contextualisation and ultimately to building a European data economy of added value services and return on investments through improved research exploitation. HELIX content and tools are inclusive to all, from individual researchers and research communities to SMEs, data and citizen scientists and data enthusiasts. Their use is unlimited, as long as the licenses of the given/selected artefacts permit it, for research as well as educational or experimental purposes. HELIX Data was developed according to the principle of interdisciplinarity to serve the (complex) research needs of cross-disciplinary groups. For that, it supports a wide range of formats and standards and applies open and interoperable solutions for the sharing and preservation of its content in the long-term. Most importantly, HELIX encourages reuse and, since it is still a work in progress, at a later stage it provisions training activities around best practices on open and FAIR publishing and RDM for its users.