Admissions Contact
View into the kindergarten group room. All students are seated at their places.

Our Team, Our Opening Hours and How to Reach Us

Greeting from the Principal

Dear parents

Thank you for your interest in SIS Kassel!

In September 2014, we opened our primary school with reception programme in the Marbachshöhe district of Kassel, followed by our bilingual secondary school in September 2017. This enables us to accompany our students from the reception programme to their graduation.

Our aim is to challenge and encourage our students every day without overburdening them. At the same time, we support them in developing into socially responsible individuals. Respect, openness, tolerance, local roots and cultural diversity play a special role here.

Admission to SIS Kassel is possible at the beginning of the school year and at any time during the year. You are welcome to make an appointment for an interview through our school office. We look forward to your visit!

Sincerely yours
Sebastian Koch

Get to Know Our School Management Team

Portrait photo of Sebastian Koch
Sebastian Koch


More about Sebastian Koch

Sebastian Koch


Sebastian Koch comes from the Kassel region, he grew up in the North Hessian village of Singlis and has been principal of SIS Kassel since February 2014. Before that, he worked for several years in the primary school management of a bilingual school in Frankfurt.

Sebastian Koch studied English literature, sport and cultural studies in Marburg and additionally acquired a Cambridge Certificate of Teaching English. Following his studies, he lived in Australia and England and worked for a time as a sports journalist and winegrower in Tasmania.

Sebastian Koch is a passionate educator and has been working in the field of bilingual education in Germany for almost ten years. He is an enthusiastic sportsman, especially enjoys playing football, and is the proud father of three children growing up bilingually.

Portrait photo of Scott England
Scott England

Vice Principal

More about Scott England

Scott England

Vice Principal

Scott England has worked at SIS Kassel since the school opened in 2014. Since then, he has taught Music, Information and Communication Technology. In 2020 he was appointed Vice Principal.

Scott is a graduate of Ithaca College with a Bachelor of Music and Music Education. He then received a Master of Music from the Manhattan School of Music . Before moving to Germany, he taught Music at a public school in the South Bronx, New York. He also worked as a professional chorister with The New York Choral Artists, the choir of the New York Philharmonic and other choirs in New York City.

Since moving to Germany, Scott has worked as a private English teacher, and as a music teacher with an international school in North Rhine Westphalia.

Scott is from the United States and grew up in Upstate New York. He is a student-centered teacher who wants to teach his students how to become good citizens of the world.

Portrait photo of Birgit Breidenbach
Birgit Breidenbach

Head of Secondary School

More about Birgit Breidenbach

Birgit Breidenbach

Head of Secondary School

Birgit Breidenbach has been teaching art at SIS Kassel since August 2016. In August 2017, she took over as head of secondary school and has since been teaching ethics as well as art.

Having grown up in Lower Saxony, Birgit Breidenbach first studied fine arts with subsequent international exhibition practice as a freelance artist, and later art history, education and philosophy at the University of Kassel. In 2014, she completed her traineeship in art and philosophy/ethics at the Wilhelmsgymnasium Kassel and taught there until 2015.

Birgit Breidenbach is the director of Malort 45b as well as an integrative art therapist and runs her own practice. She trains teachers in painting, has led the Malort in Nagaland and Karnataka (India) as well as at various institutions in Kassel.

Aristotle believed that amazement is the beginning of philosophy. For Birgit Breidenbach, every child who wonderingly explores the world stands at the forefront. The revival of spontaneity and questioning, as well as undemanding play, open up horizons that are an essential part of being a child and make unbiased perception, learning and living possible in the first place.

Portrait photo of Nicole Mitreska
Nicole Mitreska

Head of Primary School

More about Nicole Mitreska

Nicole Mitreska

Head of Primary School

Nicole Mitreska joined SIS Kassel as a primary school teacher in September 2014 and took over as head of primary school one year later.

She completed her teacher training for primary and middle school at the University of Hamburg in the subjects of sociology, mathematics and educational science. After her traineeship, she took over as class teacher of grade four in Hamburg Neurahlstedt. She then continued as class teacher in fifth and sixth grade.

After gaining initial professional experience, she moved to Great Britain. Here she was not only able to gather experience as a substitute teacher, but also gave additional lessons at an English primary school for pupils who needed to be supported and challenged, especially in mathematics and literacy. She was particularly interested in the supplementary lessons in Guided Reading.

After twelve years, Nicole Mitreska returned to her hometown and now uses the experience gained abroad to shape young people into responsible, well-informed, courageous, questioning and creative individuals.

Teaching and Supervision Hours

At our day school, students are supervised from 7:30 a.m. to 6 p.m.


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

Holiday Calendar 2023/24

The school adheres to the official school holiday calendar of Kassel.  



Start of academic year 04.09.2023
Autumn holidays 23.10.2023 - 28.10.2023
Christmas holidays 27.12.2023 - 13.01.2024
Movable holiday 05.02.2024
Professional Development (school closed) 15.03.2024
Easter holidays 25.03.2024 - 13.04.2024
Movable holiday (after Ascension Day) 10.05.2024
Movable holiday (after Corpus Christi) 31.05.2024
Summer holidays 15.07.2024 - 23.08.2024

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

No events found.

SIS Kassel

SIS Swiss International School

Johanna-Waescher-Str. 15
34131 Kassel


Phone: +49 561 316 68 30



Office Opening Hours

Monday to Friday: 7:30 a.m. to 10:30 a.m. and 12 p.m. to 3 p.m.

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