About ISZL

A World-Class International school

Welcome to the International School of Zug and Luzern (ISZL) and thank you for your interest in our school. We encourage you to take the time to explore our website and to discover for yourself, why ISZL is recognised as one of the world’s leading international schools.

ISZL is an independent co-educational, non-profit day school serving the international community of Central Switzerland by providing a comprehensive education from Early Years to university preparation, from ages 3 to 18.

Our world-class learning community offers an exceptional educational experience and builds a connected, inclusive, inspiring environment for our students, parents, alumni, faculty and staff. It is a vibrant, multicultural and caring community that fosters a deep sense of community wellbeing.

As an International Baccalaureate (IB) World School, ISZL is authorised by the IB Organisation to offer the Primary Years, Middle Years and IB Diploma programmes. In addition, students in Grades 11 and 12 have the option of taking Advanced Placement (AP) courses and exams. All AP courses are audited by the College Board.

ISZL has been accredited by the prestigious and highly respected Council of International Schools (CIS) and the New England Association of Schools and Colleges (NEASC). The school demonstrates that its academic programmes are of the highest quality.

ISZL is supervised by the Educational Authorities of the Cantons of Zug and Luzern and operates with their approval.


ISZL is registered as a non-profit organisation (Stiftung) in Switzerland and affiliated with a 501(c)(3) tax-exempt organisation in the United States.