Founded in Brussels in 1951, The International School of Brussels (ISB) is Belgium’s oldest international school. For 75 years, we have provided exceptional education as an independent, not-for-profit day school serving students from Preschool to Grade 12. Our international student community includes 1300+ students from 60+ different countries, making our campus a culturally rich space that facilitates learning from and with people from all over the world. Set within the beautiful Forêt de Soignes and located just 10 metres away from a UNESCO World Heritage Site, our facilities allow students to benefit from an immersive learning experience, to tailor their learning path to their passions and talents, and to make the school environment a place they are eager to return to every Monday.

Our educational programme is as diverse as our student demographics and is carefully tailored to develop independent learners and international citizens in an environment where all students are included, challenged, and successful.

We focus on fostering future-proof expertise, which is adaptable and transferable. All ISB Graduation pathways – such as the International Baccalaureate (IB) Diploma Programme, the US High School Diploma, the BTEC programme, or the Advanced Placement (AP) programme – open doors to great future opportunities. With the widest range of IB courses in Belgium and diploma results that consistently surpass global averages, ISB stands out as the country’s leading inclusive IB school.

As school is so much more than the classroom, we believe that enhancing creativity and fostering team spirit is imperative for developing skilled, independent learners, who are equipped to be successful in a working world without borders. Apart from our core academic programme, which is regularly reviewed by mapping and comparing standards from different national systems, ISB offers an extraordinary selection of extracurricular activities in the fields of Arts and Athletics.

Our academic programmes empower students to become innovative problem-solvers and creative thinkers. By fostering adaptability and curiosity, our curriculum equips them to tackle unfamiliar challenges and thrive as forward-thinking global citizens. Regularly reviewed for excellence and informed by international research, it offers a personalised, global academic experience that prepares every student for success.

Guided by dedicated educators and enriched with exceptional resources, ISB empowers students from Preschool to Grade 12 to explore their interests beyond the curriculum from day one, nurturing creativity, resilience, leadership, and lifelong skills through a globally recognised Athletics and Activities programme. With over 50 competitive teams across 15 sports, diverse arts courses rooted in creative freedom, and approximately 90 after-school activities spanning languages, creative pursuits, and outdoor experiences, students are encouraged to discover their passions, express their unique voice, and challenge the world through creative ideas – whether as a personal interest or a future pathway – setting a global standard for authentic, personalised international school experiences.

ISB offers outstanding facilities that support learning, creativity, and wellbeing, including two libraries, a fully equipped theatre with a lighting booth and dedicated spaces for rehearsal, costume, and stage design, STEM and science labs in both Lower and Upper School, multiple music rooms, visual arts studios, and design and technology rooms. The school’s exceptional sports facilities include two gyms, athletics fields, a running track, indoor and outdoor fitness spaces, a martial arts dojang, tennis bubble, indoor climbing walls, and a dedicated dance studio – placing ISB among the leading international schools in Europe for athletics.