A total of 28 organizations from 21 EU and non-EU countries participated in the training course, with their selected participants representing QL accredited organizations in the roles of ESC volunteering project coordinators or mentors (in supporting and/or hosting and/or LEAD organizations). Specifically, these participants came from the following countries: Albania, Armenia, Azerbaijan, Bosnia and Herzegovina, Bulgaria, Georgia, Egypt, France, Montenegro, Czech Republic, Italy, Kosovo, Germany, Poland, Greece, North Macedonia, Slovakia, Serbia, Tunisia, Turkey, Ukraine. During the participant selection process, we strived to emphasize a balance of participants from EU countries and the three Partner Regions: SEE/Western Balkans, Eastern Partnership countries, and Euromed. The range of participating partner organizations, their focus, and their experience with ESC volunteering projects were truly diverse, bringing variability, innovative approaches in working with international volunteers, and a wide range of knowledge, skills, and experiences, including examples of good practice. We are grateful for this unique opportunity to connect so many socio-culturally and thematically diverse organizations and participants on the topic of ESC, with the aim of supporting the development of competencies needed for the role of ESC coordinators, their cooperation, and focusing on the process of finding common values and mutual understanding, openness, creating a safe environment, and trustworthy partnerships for future ESC projects.