The EMIF catalogue contains extensive metadata on a number of European health data resources, such as registries, EHRs, biobanks etc., organized by a number of communities, such as EMIF-EHR, EMIF-AD, EPAD, ADVANCE, BigData@Heart, PIONEER etc. The metadata collected is the data available, the data governance procedures, contact details etc. The catalogue intends to comprise different vertical projects through the creation of communities, such as EMIF-Electronic Health Record Data (EMIF-EHR) and EMIF-Alzheimer’s Disease (EMIF-AD), the BigData@Heart (for cardiovascular) and PIONEER (for prostate cancer) projects, supporting distinct databases and users.