Sofia International School

Sofia International School (SIS) is one of Bulgaria's premier private international schools, offering education from Early Years through Grade 12. The school provides the IB Diploma Programme alongside Cambridge IGCSE qualifications, and maintains a strong bilingual English-Bulgarian curriculum from early grades. SIS serves approximately 500 students from Bulgarian and international families, focusing on holistic development that combines academic excellence with arts, sports, and community engagement. The school is recognized by the IB Organization and accredited by international educational bodies. SIS's modern campus in western Sofia includes well-equipped classrooms, science labs, sports facilities, and creative arts spaces. The school is particularly valued by Bulgarian professional families and internationally mobile parents seeking a high-quality internationally oriented education for their children. SIS graduates gain entry to universities across Europe, the UK, and internationally, with a strong record in competitive admissions processes.