About SIS Group

A Growing, International Network of Bilingual Schools

SIS Swiss International School is one of Europe's leading networks of private bilingual day schools. Founded in Switzerland in 1999, SIS has grown to 20 schools across Switzerland, Germany, Brazil, Italy and Spain. CSM by SIS is the first SIS school in Spain.
A Global Learning Community

A Shared Approach to Bilingual Education

The SIS Educational Concept is centred on consistent bilingual classroom instruction and peer experience in the national language and English, culminating in a national or international university entrance qualification.

Today, more than 5,000 students from over 100 nationalities learn within the SIS network.

SIS is a company of the Klett Group.

Our Company

A Sustainable Business Model

To ensure we remain one of the best in our field, we are committed to upholding a strong, sustainable business model.

SIS guarantees high educational and quality standards: structures and processes at SIS locations are continuously evaluated and developed.

  • We regularly follow up on curriculum implementation to meet teaching and learning standards of excellence that are standardised within the SIS schools around the world and provide the best learning experience to our students.
  • Many of the SIS Swiss International School locations are accredited International Baccalaureate (IB) World Schools.
  • Our schools undergo evaluations by both the SIS Swiss International Schools Group and the IB World Programme Committee.
Ready to Take the First Step? 

Applications are open throughout the year.

Discover CSM by SIS and what makes our school special. Visit us and experience our school first-hand or get in touch with our team.