Hellenic Open University (HOU) is the only Greek State University that offers formal and non-formal lifelong education, in both undergraduate and postgraduate levels, to more than 40.000 students who are dispersed all over the country. Its training methodology combines distance learning with principles of adult education, relies heavily on digital material and virtual meetings and used online training platforms and tools. About 80% of its students are working professionals who seek further education in order to improve or change their career, thus HOU has established a permanent connection with the market, professional networks and professional development agencies. HOU is member of EADTU, EUA, Eurashe and the Greek Digital Skills and Jobs coalition. It applies the ISO 9001:2008, ISO 27001:2013 and ELOT 1429:2008 quality standards.