
The International Schools Athletic Association is a member-led organisation comprising high-performing international schools across Europe and the Middle East. Its primary aim is to facilitate a competitive and inclusive sporting community through a structured calendar of varsity and junior varsity tournaments. Governed by its member institutions, the ISAA promotes sportsmanship, intercultural understanding, and healthy competition. Membership is restricted to schools that align with the association’s philosophy on student-athlete welfare and fair play, ensuring a consistent standard of athletic coordination and safeguarding across its diverse network of international educational institutions.
ISAA Member Schools (2)

Marymount International School is an independent day and boarding school for girls aged 11 to 18, situated on a seven-acre campus in Kingston upon Thames. Founded in 1955 by the Religious of the Sacred Heart of Mary, the school maintains a Catholic ethos while welcoming students of all faiths. It was the first school in the United Kingdom to adopt the International Baccalaureate curriculum, offering both the Middle Years and Diploma Programmes. Facilities include a modern STEAM "Fab Lab" and purpose-built sports and arts spaces, supporting a holistic approach to education.

TASIS The American School in England is a co-educational day and boarding school for students aged 3 to 18, located on a 46-acre campus in the village of Thorpe, Surrey. Established in 1976, the school is housed in a mix of modern facilities and historic buildings, including a Grade II listed Georgian manor house. It offers an American curriculum alongside the International Baccalaureate Diploma and Advanced Placement courses. The campus features a dedicated arts centre, multiple sports fields, and specialised science labs, catering to a diverse, international student body.