International School of Zug and Luzern

International School of Zug and Luzern (ISZL) is one of Switzerland's leading international day schools, founded in 1961 and operating across multiple campuses in the greater Zug and Lucerne region. Educating students aged 3 to 18, ISZL offers the IB PYP, MYP, and Diploma. Accredited by CIS and NEASC, ISZL serves 60+ nationalities from Zug's extraordinary concentration of multinational corporations — the canton of Zug has one of the world's highest densities of international companies per capita. ISZL consistently achieves outstanding IB results. Its multiple campuses across beautiful central Switzerland feature science labs, arts spaces, sports halls, and Alpine views. Swiss German language instruction supports cultural integration.