- Chairman elect and founding member of the NoR HGT & LUCAAssociation(http://www.nor-hgt-luca.com).
- Management Committee representative for COST Action “ORIGINS (Origins and evolution of life on Earth and in the Universe”(http://www.cost.eu/TD1308).
- Executive and committee member of the European Astrobiology Network Association(EANA)–Representative for Greece
- Founder of the unofficial Greek Astrobiology Association(http://www.astrobiology.gr).
- Member of the International Geochemical Society(http://www.geochemsoc.org/).
- Founding Member of the Research Centre for the Culture and Environment(RCCE),a non-profit organisation established in Athens, Greece (http://www.ekeppol.gr/). Validated by the European Commission, 7thFramework programme, with PIC 986892066.
- Manager of the “Astrobiology” groupin Linkedin©currently with over 775 members. (http://www.linkedin.com/groups?gid=1912155)
- Manager of the “Biosignatures” groupin Linkedin©. (http://www.linkedin.com/groups?gid=4797037)
- Manager of the “Martian Meteorites” groupin Linkedin©.
- Member of the Astrobiology Future Initiative.