Montgomery International School

A small full-IB continuum school in central Brussels with a strong bilingual angle, around 200 students from age five to nineteen.

PYP, MYP and Diploma on a single city campus in Woluwe, with the Advanced Bilingual Diploma layered in, French at Language and Literature plus Social Studies in French while the rest is taught in English. That bilingual route is rare in Brussels and is the main reason families pick Montgomery over the larger IB schools.

Recent IB Diploma results have been strong, with Montgomery posting averages above the global mean and a high pass rate. Class sizes are small, families know each other, and teachers track students closely from primary up. The trade-off is scale: limited subject choice at Diploma, a small sixth form cohort, and fewer sports and activities than BSB or St. John's. Families who want a personal feel and bilingualism without commuting to Waterloo find this works.

• Parents and students writing about Montgomery International School describe a small IB school close to NATO and the European institutions, with a metro stop on the doorstep and a clear bilingual French-English track.
• The most repeated positive is class size. Parents say small groups let teachers tailor work to each child, and students say it makes the school easier to settle into.
• Communication with parents draws consistent praise. One parent said the teachers stay in supportive and persistent contact, and several others describe the atmosphere as welcoming.
• IB results are a recurring talking point. The school reports a 100 percent Diploma pass rate and points scores above the global average, and the directory pool of independent reviews backs the quality framing.
• Critical signal online is thin. The independent review pool is small enough that the absence of negatives is itself a flag rather than proof; families weighing the school should treat the very high published rating as a small-sample number.