Admissions Contact
Children stand with two caregivers in front of the school entrance.

Our Team, Our Opening Hours and How to Reach Us

Greetings from the Principal

Dear visitors

A very warm welcome to SIS Pfäffikon-Schwyz, a private bilingual day school with approximately 120 students, from kindergarten through to upper school. The bilingual educational concept of SIS Swiss International School has been successfully implemented here since 2015. The school community is characterised by a vibrant and nurturing multicultural environment and represents more than twenty nationalities. Please take some time to explore our website and discover the many exciting facets of our school, and do not hesitate to contact us. I look forward to welcoming you and your family to SIS Pfäffikon-Schwyz!

Get to Know Our School Management Team

Portrait of Christian Rütti
Christian Rütti


More about Christian Rütti

Christian Rütti


Christian Rütti is a bilingual Swiss citizen who was born and raised in Johannesburg, South Africa and moved to Switzerland in 2001.


Before stepping into the role of principal at SIS Pfäffikon-Schwyz in August 2020, he was principal of a private school in Basel for two years. Prior to that, also in Basel, he was managing director and personnel manager of a language school for adults for several years. An additional 12 years of teaching experience before that, both in Switzerland and in South Africa, round off his professional experience within the field of education. Christian Rütti’s qualifications include a bachelor’s degree in education and a Swiss diploma in the field of personnel management.


His professional aim has always been to do everything possible to motivate and guide students and staff alike to achieve their full potential. He is a firm believer in encouraging students to nurture a healthy and balanced lifestyle and a positive attitude towards learning and life in general.


Christian Rütti is an avid cyclist and outdoor enthusiast who loves to explore nature with his family throughout the seasons. He enjoys working and interacting with people from various cultures.

Portrait of Andrea Oettinger
Andrea Oettinger

Head of Kindergarten and Primary

More about Andrea Oettinger

Andrea Oettinger

Head of Kindergarten and Primary

Andrea Oettinger is an American who was born and raised in Boston.


For her undergraduate degree, she attended the University of Pennsylvania in Philadelphia where she studied elementary education. After completing her bachelor’s degree, she moved west to Colorado and taught for six years in the Denver Public Schools. Andrea Oettinger went on to attain a master’s degree in education policy at the University of Colorado and then moved back to Philadelphia where she completed a doctorate in education in Teaching, Learning and Curriculum at the University of Pennsylvania. From 2013 to 2017, Andrea Oettinger worked as the Director of Mathematics for several schools in the Philadelphia area, which involved training teachers and leaders on implementing conceptual mathematics instruction in the classroom.


Andrea Oettinger is an avid skier who grew up in the cold, small mountains in New Hampshire and Vermont. She travels to the mountains as much as possible to ski in the winter and hike in the summer. She also loves to read in her free time.

Portrait of Amaia Tollinche
Amaia Tollinche

Head of Secondary

More about Amaia Tollinche

Amaia Tollinche

Head of Secondary

Amaia Tollinche is a multicultural and multilingual American. She was born in Frankfurt, Germany, to a Spanish mother and Puerto Rican-American father, and was raised in Miami, Florida. She moved to Zürich, Switzerland in 2005, where she currently lives with her Swiss husband and two daughters. She grew up as a bilingual speaker of English and Spanish and has an intermediate level of German due to her studies and her Swiss-German family. 


Amaia Tollinche graduated from Florida International University in Miami, Florida, with a degree in Sociology and Anthropology from the school of Arts and Sciences. She completed her Education studies, specializing in Social Studies (Humanities) for middle and high school students. She has worked in a variety of international, private, and IB schools in both Miami and in several cantons in Switzerland. 


A lover of the beach, sun and seas, she is an avid world traveller and collector of many things. Her colourful classroom displays her collection of books, and mementos from her travels, to inspire her students to learn about all things global. She greatly values diversity and loves working in an international community, such as SIS Pfäffikon-Schwyz. 


With her outgoing and amiable personality, Amaia Tollinche enjoys working with teenagers, supporting them in their academic and social needs. Most importantly, she strives to make learning fun and making her students laugh. 

The Team of SIS Pfäffikon-Schwyz

Our educators make our educational concept tangible, every single day. Our dedicated team is committed to the individual development of our students. To keep our educational work at a consistently high level, our team regularly takes part in internal and external further training.


Education Is a Valuable Resource, Which Is Why We Value Transparency


Education Is a Valuable Resource, Which Is Why We Value Transparency

SIS Swiss International School is a private educational institution that is financed solely from school fees and does not receive subsidies from the Swiss national or cantonal governments. We offer high-quality education as a service – and we are committed to offering this service in a transparent way.


Learn more about the school fees

Two primary school girls sit at the desk in class and write something.

Teaching and Supervision Hours

At our day school, students are supervised between the hours of 7:30 a.m. and 6 p.m.


The exact lesson and supervision times vary between the different year levels. 

Holiday Calendar 22/23

The school adheres to the official school holiday calendar of the canton of Schwyz.


Start of academic year 16 August 2022  
Autumn break 3 October to 14 October 2022  
Christmas break 23 December 2022 to 6 January 2023  
Winter break 27 February to 10 March 2023  
Spring break 1 May to 12 May 2023  
Summer break 10 July to 15 August 2023  


You are invited! Have a look at our upcoming events.

No events found.

SIS Pfäffikon-Schwyz

SIS Swiss International School

Eichenstrasse 5
8808 Pfäffikon SZ

Phone: +41 55 415 44 00




Office Opening Hours

Monday to Friday: 7:30 a.m. to 12:15 p.m. and 1:15 p.m. to 4:30 p.m.

Wednesday: 7:30 a.m. to 12:15 p.m.

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