A ceremonial event marking the 20th anniversary of the Slovenian Fusion Association (SFA) was held on 24 June at the ICJT, Jožef Stefan Institute. Founded in 2005, SFA is one of Europe’s leading groups in fusion research and an important partner in the EUROfusion programme. The event was opened by Prof. Dr. Barbara Malič, Deputy Director of the Jožef Stefan Institute, who emphasised that fusion research is strategically important for the Institute and represents a field with great potential for a sustainable energy future. Dr. Tomaž Boh, Director-General of the Directorate for Science and Innovation, highlighted the importance of Slovenia’s participation in international research. Dr. Boštjan Končar presented the development of SFA from a small group to a key European partner, as well as its achievements and projects. The keynote speaker, Dr. Gianfranco Federici, Programme Director of EUROfusion, underlined SFA’s strong integration into the European fusion programme and the contributions of Slovenian researchers to developing technologies for future fusion reactors.