Our Team, Our Opening Hours and How to Reach Us

Stefanie George took over the position of principal at SIS Rotkreuz-Zug in 2023 after working as principal at SIS Schönenwerd and vice-principal as well as a teacher at SIS Zürich-Wollishofen.

Prior to that, she taught German at the Zurich International School for seven years and managed the German department there. At the same time, she completed her further training to become a school principal. Before that, she worked at other international schools.

Stefanie George grew up in Stuttgart in the south of Germany in an international family and completed her teacher training there. She then raised her two children in England and Germany with her English husband. She has now been living in Switzerland for many years and feels very much at home here.

Every day she is delighted to see how quickly the children become comfortable in the bilingual world and enjoys supporting children on their learning journey.

Samuel Windsor joined the teaching team at SIS Rotkreuz-Zug in 2019 and began his role as Head of Secondary in August 2021.

He was born in England where he attended the University of Chester. There, he received a bachelor's degree in primary education with a special focus on the teaching and resourcing of scientific investigations in the primary and secondary classrooms. Before joining SIS, he was teaching in public schools in the UK.

Samuel Windsor is a dedicated teacher who strives to create an inclusive environment in which all children can develop according to their needs and learning styles. He is passionate about working with children from all age groups and contributing to their journey through education.

Suzy Letheren joined the SIS Rotkreuz-Zug team in August 2016 and became Head of Primary in August 2021. In 2023, she successfully completed the SIS Leadership Programme.

She was born in England and attended Kingston University where she received her Bachelor of Education, majoring in primary education with English, drama and physical education.

Prior to teaching at SIS, Suzy Letheren worked extensively in the private and public systems in the UK for over 11 years before moving to Switzerland in 2010.

Suzy Letheren is a passionate practitioner who believes that education should be fun. Finding opportunities for all students, not just those she has the privilege of teaching, to shine, achieve well and feel valued is incredibly important to her.