OUR TEAM
Meet the Team
At SISERA Greece, our team brings together educators, researchers, and professionals who share a commitment to learning, inclusion, and sustainable growth. We combine experience from education, science, and community work to design and carry out projects that make a real difference. Each of us contributes unique skills, but we all believe in the same idea — that knowledge, cooperation, and creativity can build a better future for people and the environment.
Meet the co-founders
Stavroula Georgantza
Stavroula Georgantza | Co-founder, Legal Representative
Stavroula Georgantza
Co-founder, Legal Representative
Charalampos Georgantzas
Charalampos Georgantzas | Co-founder, Head
Mr. Charalampos Georgantzas is a professional in the field of Applied Mathematics and Physical Sciences, associated with the National Technical University of Athens, Greece. His area of expertise lies in statistical research and applied analysis. With an extensive academic background, Charalampos has conducted research in various fields, including the application of innovative educational processes as well as socio-economic issues.
With over seven years of experience, he has worked in administrative and managerial positions in the private sector, developing a solid understanding of process management and customer-oriented operations. His skill set includes the creation and design of educational and marketing materials, along with the implementation of process and quality control tools.
In addition to his professional work, Charalampos is an active volunteer and youth worker with more than five years of experience. He has participated in numerous educational programs related to human resources development and public relations. His involvement in a wide range of European projects — including Erasmus+ KA1 and KA2, as well as other programmes such as those focusing on business, soft skills, arts, sports, social challenges, and environmental issues — highlights his adaptability and commitment to learning and cooperation.
He possesses strong ICT skills and proficiency in several programming languages, including Java, Matlab, R, and Python. He is also experienced in the use of image, video, and audio editing software, and is proficient in WordPress. Charalampos is an effective communicator and collaborator, fluent in English (C2) and Spanish (B2).
As a dedicated researcher and expert in EU projects, he contributes to the design and implementation of initiatives at the European level. As a co-founder of SISERA Greece, he has been an essential part of the organization’s growth since its establishment in October 2020, serving as Head, researcher, and EU project expert.
Charalampos Georgantzas
Co-founder, Head
Dimitra Xesfigkouli
Dimitra Xesfigkouli | Co-founder, Project Manager
Dr Dimitra Xesfigkouli is a dedicated primary and preschool teacher with an extensive 22-year background in Greek public and private education. She holds two bachelor’s degrees with honors in Primary and Preschool Education from the University of Thessaly, along with a Master’s Degree in “Administration and Management in Education” and a PhD in Primary Education from the same institution. Her doctoral research, titled “Professional Development of Primary Education Teachers in the context of Pedagogical Advancements in Modern School,” demonstrates her expertise in the field.
Dimitra’s expertise spans various areas, including Intercultural Education, Adult Education, e-learning methods, and ICT database development. Her proficiency in the English language and teaching experience further strengthen her qualifications. Throughout her career, she has served as a primary education schoolteacher, a mentor teacher at the University of Thessaly, and an English school owner. She has extensive experience in EU projects, having served as a key contributor and promoter of such initiatives during her tenure as a posted teacher in the Regional Directorate of Primary and Secondary Education of Thessaly.
Her passion for education is reflected in her numerous publications on the development of primary education. Dimitra is multilingual, being proficient in English (Level C2) and French (Level B2). She co-founded SISERA Greece and has been a project manager and contact person since October 2020.
Dimitra Xesfigkouli
Co-founder, Project Manager
Meet the members
Nancy Ntagoloudi
Nancy Ntagoloudi | Member
Nancy Ntagoloudi
Member
Chara Angeletou
Chara Angeletou | Member
Chara Angeletou
Member
Georgios Sygkounas
Georgios Sygkounas | Member
Mr. Georgios Sygkounas obtained his degree in Psychology from the Department of Philosophy and Education at the Aristotle University of Thessaloniki. During his studies, he volunteered in several institutions supporting psychiatric patients and children with developmental disorders.
In 2007, he completed a Master’s course in Clinical Psychology at Leiden University in the Netherlands, followed by a research internship at the same department, focusing on research design and statistics.
From 2010 to 2018, he worked at a day care center for infants and children with autism spectrum disorders in Larissa, Greece, while also maintaining a private practice since 2010. In his private work, he supports children, teenagers, and families facing challenges related to autism spectrum disorders, anxiety, addictions, and depression.
He continues to receive ongoing training in autism interventions and regularly participates in relevant conferences. He speaks English fluently and has been a member of SISERA Greece since 2023.
Georgios Sygkounas
Member
Meet the volunteers
- Eleni Anastasopoulou
- Katerina Belogia
- Nancy Zikyri
- Vangelis Tsoupakis
- Litsa Vasileiou
- Eirini Chatzigianni
- Eleni Boumpouka
- Eleftheria Pantazi
- Loukas Papageorgiou
- Olympia Tsoupaki
- Dimitris Tsoupakis
- Vasileios Anastasakis
- Ilias Bammas
- Nafsika Lambrou
- Dimitra Sachpatzidou
- Dimitra Tsoumani
- Nefeli Theofanopoulou
- Prodromos Chatziandreou
- Eirini Simitzi
- Konstantina Panopoulou
- Nikolaos Toulinas
- Dimitra Boranta
- Iasonas Loukas
- Alexandros Tsakiltsidis
The expertise of the staff includes
- Educational and social research
- Innovation in teaching, learning, and community development
- In-service training and professional development
- Collaboration with local, national, and international stakeholders
- Guidance on research, project design, and methodology
- Coordination of pedagogical and social initiatives
- Design and implementation of evaluation and impact assessment tools
- Development of inclusive, digital, and sustainable practices
SISERA’s staff has participated in various projects such as Comenius, Leonardo, Erasmus+ and e-Twinning along with other European and international projects (CERV, Creative Europe, Horizon, Intereg, Teachers4Europe, Pestalozzi). They promote and coordinate Environmental Education and Culture projects in the Region of Thessaly and they participate in national and international networks.