With hundreds of IB schools around the world, draw on our expertise when deciding which school to make your IB home.

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Date Founded
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Teaching the IB since
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IB Programmes Offered

ISG, La Grande Boissière is the oldest and largest of the three ISG campuses. Founded in 1924, it is the oldest international school in the world. In the 1960s a group of teachers from this school created what is now known as the International Baccalaureate. The school offers French/English bilingual education.

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Average IB Score

The average score of students at LGB is 33.7 compared to the IBO average of 28.56

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CHF 34,430

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LGB has a Non-Selective policy. Information about their entry criteria can be found on their website.

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Languages at school

100 nationalities; 66 mother tongues; World Languages Programme: Arabic, Catalan, Chinese, Croatian, Danish, Dutch, Finnish, German, Greek, Hebrew, Hindi, Italian, Japanese, Norwegian, Russian, Spanish, Swedish and Turkish.


As the IBO's Middle Years Programme continues to grow and expand into schools accross the world, we're eager to share information with families about schools options for students pre-IB.

Final year of MYP

LGB does not offer the MYP but may offer similar courses.

MYP Alternative


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Route de Chêne 62 1208 Genève

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You can visit the ISG, La Grande Boissière website here.

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LGB is affiliated with G20 Schools Group; International School of Geneva

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Embodying the spirit of the IB

Truly International

The IB equips students with the skills and knowledge to take part in a global society. With branches in London, Geneva, and Singapore, our team of tutors is just as international as we are. With online tuition, you can invite successful and ambitious IB graduates anywhere in the world into your own home.

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