• C. P. Rossel, CH  (President, European Physical Society & IBM – Zurich)
• D. Lee, FR (Secretary General, EPS)
• M. Kolwas, PL (Professor, Polish Academy of Sciences)
• G. Rossi, IT (Vice-chair, European strategy forum on research infrastructures)
• D. Nagy, HU (Scientific Counsellor at KFKI Research Institute)
• R. Constantinescu, RO (Professor, University of Craiova and SEENET-MTP)
• I. Ursu, RO (Scientific Secretary, IFIN-HH, ELI-NP; Extreme Light Infrastructure-Nuclear Physics)
• G. Djordjevic, RS (Professor, University of Nis and SEENET-MTP)
• T. Suric, HR (Professor, Ruđer Bošković Institute, Croatia)
• R. Zikic, RS (Professor, Institute of Physics, Belgrade)
• D. Dimitrievic, RS (President, PSN and University of Nis)
• A. Zagorodni, UA (Vice-president of the National Academy of Sciences of Ukraine; Director of the Bogolyubov Institute for Theoretical Physics)
• M. Moragues, EC (COST, European Cooperation in Science and Technology)
• B. Aneva, BG (INRNE, BAS & SEENET-MTP)
• A. Proykova, BG (Member of the Advisory Groups on FET, SWAFS, International Cooperation and Gender, HORIZON2020 & Chair, Local organizing committee, Sofia University)
• S. Stoyanov, NL (Senior Scientists, UNILEVER &Wageningen University)
• D. Dimova, BG (Local organizing committee, Sofia University)
• P. Venkova, BG (Local organizing committee, Sofia University)
• S. Pisov, BG (Local organizing committee, Sofia University)
• A. Dreischuh, BG (Dean, Faculty of Physics, Sofia University)
• T. Mishonov, BG (Profesor, Sofia University & Chair, Sofia Branch, Union of the Physicists in Bulgaria)
• R. Tsenov, BG (Professor, Sofia University & CHORUS, HARP collaborations, CERN)
• N. Vitanov, BG (Vice-Dean, Faculty of Physics, SU & collaborator in many EU funded projects; PC member, ERC)
• T. Spasov, BG (Dean, Faculty of Chemistry and Pharmacy & BEYOND EVEREST EU PROJECT)
• D. Delibasic, RS (Faculty of Natural Sciences and Mathematics, Nis)
• K. Paenov, BG (Local organizing committee, Sofia University)

Official guests:

• Ms. Milena Damyanova, Member of the Parliament
• Ms. Aglika Sabeva-Tsvetanova, European Commission Representation in Bulgaria
• Prof. Nikolai Denkov, Vice-Minister, Ministry of Science and Technology
• Prof. Kostadin Kostadinov, Vice-Minister, Ministry of Science and Technology
• Prof. Ivan Ilchev, Rector, Sofia University
• Prof. Georgi Mihov, Rector, Technical University of Sofia
• Prof. Marin Hristov, Technical University of Sofia
• Ms. Elitsa Panayotova, Executive Director, Sofia Tech Park
• Mr. Peter Tchesnovsky, Sofia Tech Park
• Ms. Lyubov Kostova, Director, British Council