International School of London

The International School of London (ISL) is a full IB continuum school in west London, offering the IB Primary Years Programme, Middle Years Programme, and Diploma Programme for students aged 3 to 18. Founded in 1972, ISL is one of the longest-established IB schools in the United Kingdom and has shaped internationally minded graduates for over fifty years.

ISL distinguishes itself through its genuine linguistic diversity — the school supports mother-tongue instruction in over twenty languages and actively celebrates multilingualism as a core part of its identity. This makes it particularly attractive for families from the Middle East, Japan, France, and across continental Europe who wish to maintain their home language alongside English instruction.

Located in Chiswick, one of west London's most sought-after family neighbourhoods, ISL benefits from excellent transport links and a strong sense of community among its internationally diverse parent body. Graduates consistently earn places at top universities across the UK, Europe, and North America.