International School of Brussels

The International School of Brussels (ISB) is Belgium's oldest and most established international school, founded in 1951 and home to over 1,350 students from 63 nationalities. Located in Watermael-Boitsfort, in the heart of the Sonian Forest, ISB offers a world-class English-language education from Early Years through to the International Baccalaureate Diploma Programme. As a fully authorized IB World School for over three decades, ISB consistently achieves outstanding results, with Diploma graduates gaining access to the world's leading universities across North America, Europe, and beyond. The school's beautiful, green campus features state-of-the-art facilities including science laboratories, arts and design studios, a performing arts centre, sports facilities, and dedicated innovation spaces. ISB is renowned for its inclusive and welcoming community, strong pastoral care system, and a rich programme of extracurricular activities encompassing sport, music, drama, and community service. With a dedicated university counselling team, the school provides exceptional support for students navigating higher education choices. ISB is the school of choice for Brussels' international diplomatic, business, and expatriate community.