HealthDay.si community is an informal association which was formed on the initiative of five independent companies and organisations, which are either health-tech start-ups, or a part of their supporting environment. These are Mesi, Xlab, Marand, InternetWeek.si in Tehnološki park Ljubljana. Since November 2014 the community has organised local and international events. We have partnered with Health 2.0 as the first chapter in the Adriatic region. The community also manages the directory of all Slovenian health-tech start-ups and interested experts, called the Green Book. The events of HealthDay.si host start-ups, physicians, information technology experts, investors, students, researchers, academics, mentors and others.