With 390 students on roll, and an average class size of 14, Obersee Bilingual School provides a personal learning environment with 50:50 German and English language instruction. The school has students from more than 40 countries and places an emphasis on introducing technology into the classroom by providing iPads and teaching coding from first grade.

SIS offers international education at eight convenient locations across the country. The modern, well-equipped school building at Pfäffikon-Schwyz provides an ideal environment for around 320 children and adolescents from kindergarten to secondary school.