Pandektis is a repository held by the National Hellenic Research Foundation. The repository contains major digital collections on Greek history and civilization. This digital Thesaurus of Primary Sources for Greek History and Culture' aims to provide free access to eleven integrated and scientifically elaborated collections produced by the three humanistic Institutes:  Institute of Greek and Roman Antiquity, Institute of Byzantine Research, Institute of Neohellenic Research. Since today, there are more than 40.000 entries and 23.000 archives available in digital form. EKT has developed certain applications to ensure the file’s interoperability and a number of digital services and tools. In the frame of NIRST, Pandektis is constantly enriched with new collections of cultural significance.