Paul Firos was born in Cairo, Egypt and came to Greece in 1963. He graduated from the University of Toulouse as a Computer Sciences Analyst.

He immigrated to the U.S.A. in 1975 and founded Hotel Data Systems, a software company for hotel applications, which was sold to the French company Amadeus in 2013. Together with his wife, Anna-Belinda Firos, they collect artworks and in 2004 they founded the Museum Herakleidon, one of the first private museums in Athens, in order to exhibit not only their own collections, but also the collections of other museums in the world. Paul Firos is also the founder and chairman of PAN Art Connections in the U.S.A., having as main activity the art collections distribution in various museums.

Theodossios P. Tassios, Professor of NTUA, member of the Academy of Sciences of Turin (Italy), is an Honorary Doctorate of the University of Liège, University of Nanking, Democritus University, Aristotle University, University of Cyprus and the Faculty of Philosophy of the University of Athens.

He served as President of international scientific associations of experts in the United Nations and the European Union and is the Honorary President of the Greek Philosophical Society, as well as President of the Greek Association of Research on Ancient Greek and Byzantine Technology (ΕΔΑΒυτ).

He has published 440 scientific papers and 50 books in various languages.

In September 2013 he was awarded the International Award of Merit in Structural Engineering by the International Association of Bridges and Structural Engineering (IABSE), Zurich.

Clairy Palyvou is a Professor Emeritus of the Aristotle University of Thessaloniki and a Visiting Professor at Frederick University in Cyprus.

She teaches History of Architecture and Management of Cultural Monuments. She is a scientific collaborator of the excavation of the prehistoric city in Akrotiri, Thera and she has carried out many studies on restoration and saliency of Knossos, Mycenae, Thorikos theater, etc. She received the first prize in the competition for the pedestrianization of D. Areopagitou str.-Ap. Paul str., (with the partnership of 4 scholars). She is a Consultant-Expert in the field of protection and promotion of monuments (UNESCO, ICOMOS, Council of Europe).

Her academic work focuses on the architecture and art of the prehistoric Aegean and has been recognized with international awards and scholarships. She has presented her work in over 200 lectures, workshops and international conferences, as well as interviews in Greek and international media (History Channel, Discovery, BBC). She has published 8 books and many scientific articles.

She is founding member and Secretary of the Greek Association of Research on Ancient Greek and Byzantine Technology (ΕΔΑΒυτ). She has curated relevant exhibitions in Greece and abroad, has edited the minutes of two international conferences, as well as the annual tribute of the magazine “Archaeology in Greek Technology, from antiquity until today”.

Eleni Nomikou was born and raised in Athens. She served in several sections of Banking up to her retirement. Her involvement with the field of culture begins in 2004, with the appearance of Museum Herakleidon in the Athenian cultural landscape.  She organizes and coordinates the educational programs of the museum and participates actively in the design of the program "Art and Mathematics" which, in the course of time, identifies with the museum and changes the way the educational community approaches the teaching of mathematics and the cultivation of aesthetics.

From 2015, she undertakes the management of the museum and organizes a series of exhibitions and activities. She considers a milestone in her career so far the organization and coordination of the Great Exhibition "Eureka-Science, Art and Technology of the Ancient Greeks", which is currently being exhibited in Museum Herakleidon.

Eleni Nomikou is a culturalist, graduate of the Department of Greek Culture, of the Hellenic Open University.

Fotini Belliou studied architecture in Athens and specialized in the restoration of historical buildings and sets at the University of Leuven, Belgium.

Her special interest in architectural heritage is being expressed both in her professional occupation with monuments of various historical periods, as well as with her active action in the field of protection and promotion of architectural heritage, and especially in Athens, through her participation in research programs and voluntary actions of Monumenta (civil, non-profit society for the protection of natural and architectural heritage of Greece and Cyprus).

Konstantinos Giannakos is a leader in the field of railway engineering, with pioneering research in various systems.

He counts more than 20 years of research including laboratory tests, on-the-field surveys and theoretical analyses. All his theoretical approaches have been verified by observations and measurements on railway lines in circulation. He has numerous publications in scientific journals and conferences, has participated in several committees of the European Union and in the period 1999-2001, as a representative of Greece, he participated in the preparation of Technical Specifications Interoperability/TSI's, on the high-speed rail infrastructure of the European Union and signed the official text.

From 1998 to 2002 he served as General Coordinator in the High Speed group for Southeastern Europe, the International Union of Railways/UIC and from 2002 to 2006 he was CEO and Vice President (2002-2003) and Chairman (2003-2004) of OSE (including the period of the Athens Olympic Games 2004). He was Visiting Professor and Lecturer of Railway Engineering at the University of Thessaly, at School of Civil Engineering in Volos, for the period 2007-2014. In addition, since 2002 he has been teaching at the Interdepartmental Postgraduate Department of Transport at the Polytechnic School of Aristotle University of Thessaloniki, and has been a consultant in various Greek and international technical companies since 2006.

Since 2010 he has been a member of the AR050 & AR060 Committees for the design and maintenance of the railways of the Transportation Research Board/TRB (member of the Science Academies in the U.S.A.). He has been selected twice (2011 and 2012) as a prominent arbiter of the Journal of Transportation Engineering of ASCE. He is a member of editorial teams of scientific journals in his field. As guest editor of the International Journal of Pavement Engineering/IJPE, he issued the special edition/issue of the magazine for High Speed Railway Infrastructure, which was released in 2010.

His interests in research include the archaeology of the second millennium BC and the technology of ancient Greece. He is a member of the Society for the Investigation of Ancient Greek and Byzantine Technology (ΕΔΑΒυτ) and of the the company AIGEUS for the prehistoric Aegean. He has published several articles in conferences and in archaeological journals. In 2012 his book entitled "Technology, sources and dating of the Trojan War" was published in English language by Lambert Academic Publishing, in Germany. The Greek version of the book was released in 2016, by Papazisis Editions.