Montgomery International School

In Brief

Montgomery suits families who want a small, genuinely bilingual IB school in central Brussels with a strong track record - 100% IB pass rate for seven years - and can accept the limited physical campus that comes with a converted townhouse. It is not the school for families who want wide subject choice or large co-curricular programmes.

Montgomery is the smallest school in this Brussels list, with around 200 students across all years from Grade 1 to the Diploma. It sits in a converted 1907 hotel de Maitre a few minutes' walk from the Montgomery metro, which puts it at the heart of the EU quarter and within easy reach of most international family neighbourhoods. The school joined the French ERMITAGE education group in 2023, which brings network resources and cross-school French-medium programming.

The bilingual offer - full English instruction with an advanced French-language track - is the school's clearest point of difference. Students can take the standard English programme or enrol in deep French-English immersion from primary through Diploma. Given the location in Brussels, families who want children to develop real French alongside strong English find this arrangement genuinely useful. The 100% IB pass rate for seven consecutive years, with an average of 34 points, is a credible result for an inclusive non-selective school.

The campus is the practical constraint. Physical education is outsourced to nearby university sports centres, theatre performances go to professional venues in the city, and there is no on-site cafeteria beyond basic provision. The second building acquired in 2020 adds 500 square metres for Diploma students, but the school is fundamentally a townhouse - suited to a small student body and not designed to grow much further. The limited subject palette at Diploma level (six subject groups with limited optional sciences and one visual arts option) is worth checking against your child's intended university trajectory.