- International Delphic Academy (IDA)
- Archaeological Institute of America
- Fellow of the Royal Geographical Society, GB
- Fellow of the New York Academy of Sciences, USA
- Fellow of the Royal Astronomical Society, GB
- International Astronomical Union
- Institute of Physics, GB
- Hellenic Geophysical Society
- Hellenic Archaeometry Society
- Hellenic Geographical Society
- Hellenic Sedimentological Society
- Hellenic Astronomical Society (Hell.A.S)
- Society for the Study of Ancient Hellenic Technology
- Member and National Representative of the European Study Group for Archaeometry of the Council of Europe (PACT)
- Hellenic Physical Society
- International Environmental Association GLOBAL-NEST
- European Panel for the European Lake Drilling Project (EC)
- International Astronomical Union (IAU)
- Society of Astronomy in Culture (SEAC)
- World Archaeological Congress