- Tsveta Karayancheva, President of the 44th National Assembly of the Republic of Bulgaria
- Krasimir Vаlchev, Minister of Education and Science
- Milena Damyanova, President of the Education and Science Committee in 44th National Assembly of the Republic of Bulgaria
- Zdravko Dimitrov, Mayor of Plovdiv Municipality
- Eng. Hasan Azis, Phd., Mayor of Kardjali Municipality
- Nikola Chanev, Regional governor of Kardjali Municipality
- Boran Hadzhiev, Mayor of Chepelare Municipality
- Prof. Rumen Mladenov, Phd., Rector at Plovdiv University “Paisii Hilendarski”
- Prof. Angel Golev, Phd., Dean of Faculty of Mathematics and Informatics at Plovdiv University “Paisii Hilendarski“
- Associate Prof. Grigorii Vazov, Phd., Rector at VUZF University
- COR MEM Prof. Hristo Beloev, DTSc DHC mult., Rector at University of Ruse “Angel Kanchev”
- Prof. Parvan Parvanov, Phd., Dean of Faculty of Mathematics and Informatics at Sofia University “St. Kliment Ohridski” and prof. Dimitar Veselinov, DSci, Director of Department of Information and Teacher Training at Sofia University “St. Kliment Ohridski”
- Prof. Borislav Yurukov, Phd., Rector at South-West University “Neofit Rilski”
- Flotilla admiral Professor D.Sc. Boyan Kirilov Mednikarov, Rector at Nikola Vaptsarov Naval Academy
- Prof. Georgi Kolev, DSc., Rector at University of Shumen
- Prof. Galin Tsokov, Phd., Director of Department for qualification and professional development of pedagogical specialists at Plovdiv University “Paisii Hilendarski”
- Elena Kudryashova, Rector at SAFU “M.V. Lomonosov”
- Prof. Aleksa Malcheski, Phd., Ss. Cyril and Methodius University, Skopje
- Elena Zolotuhina, Rector at Moscow Regional Social and Economic Institute
- Prof. Rusakov, President of Academy of informatization of education
- Prof. Djondjorov, Director of Institute of Mechanics at Bulgarian Academy of Science
- Acad. Margarita Kamenova, Phd., Bulgarian academy of sciences and arts
- Maya Videnova, Executive Director of Foundation “Mlada Bulgaria”
- Foundation “Dimitar Berbatov”
- Nikolay Rajkov, Association “European Kangaroo”
- Maria Lilkova, Union of Bulgarian Mathematicians, section Sofia
- Angel Gushev, Director of PMG “Vasil Drumev”, Veliko Tarnovo, and Radoslava Zlateva from Union of Bulgarian Mathematicians, section Veliko Tarnovo
- Union of Bulgarian Mathematicians, section Kardjali
- Union of Bulgarian Mathematicians, section Dimitrovgrad
- Members of Union of Bulgarian Mathematicians – section Gorna Oryahovitsa
- Assoc. Prof. M. Shopova, Union of Bulgarian Mathematicians, section Svishtov
- Union of Bulgarian Mathematicians, section Vratza
- Prof. Grozio Stanilov, DrSc., Geometry Society “Bojan Petkantschin” of the Union of Bulgarian Mathematicians
- College for organizing and conducting student Olympiads and competitions in mathematics
- Plaque from Plovdiv University “Paisii Hilendarski”
- Plaque from Chepelare Municipality
- Plaque from Prof. Minko Balkanski
- Plaque from Section Geometric Society Boyan Petkanchin
- Plaque from the Association “School Board of PMG Exarch Antim I” Vidin
16-18 October, Pamporovo, Bulgaria
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