Montgomery International School, Brussels | International Schools Guide

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. Scale is the limitation: 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.

Year level	Age	Fee
Grades 1-5 (PYP 1-5)	6	€26,000
Grades 6-8 (MYP 1-3)	11	€27,850
Grades 9-10 (MYP 4-5)	14	€28,950
Grade 11 (DP 1)	16	€33,100
Grade 12 (DP 2)	17	€33,750

Year level

Age

Fee

Grades 1-5 (PYP 1-5)

€26,000

Grades 6-8 (MYP 1-3)

€27,850

Grades 9-10 (MYP 4-5)

€28,950

Grade 11 (DP 1)

€33,100

Grade 12 (DP 2)

€33,750

A small full-IB school in Woluwe-Saint-Pierre, a few minutes from the EU institutions and NATO and right by Montgomery metro. Around 200 students across 50-odd nationalities, English-medium with a French bilingual track, and class sizes that families repeatedly call out as the headline feature. Joined the French-based Ermitage Educational Group in autumn 2023, which now sits behind the school alongside its Maisons-Laffitte and Aix-en-Provence siblings. Parent and student write-ups skew warmly positive on teaching, pastoral feel and IB outcomes, with a small but sharp dissenting voice and the usual questions that follow a recent ownership change.

Positives

Small classes and individual attention. The size of the school is what families circle back to most. Class groups in the low teens, named teachers who know each child, and mid-year arrivals from other systems described as settling in quickly. Useful for IB transfers who can't afford a slow landing.
IB outcomes. Full PYP-MYP-DP continuum with a consistent run of 100 percent Diploma pass rates and averages sitting above the global mean. Modest cohort sizes mean a strong year can swing the headline, but the trend has held for several years.
International, bilingual community. Over 50 nationalities in a school of around 200, with a genuine English-French bilingual option rather than a token language strand. The mix suits diplomatic, EU-institution and NATO families cycling through Brussels on short postings.
Location and access. Sits in Woluwe-Saint-Pierre within a short walk of Montgomery metro, with the EU quarter and NATO both reachable on the same line. Drop-off works for parents heading into the European institutions without a car detour.

Ownership change. Joined the Ermitage Educational Group in October 2023, sitting alongside Ermitage International near Paris and Sainte Victoire in Aix-en-Provence. The group pitches shared resources, exchanges and joint development; the practical effects on staffing, fees and programme are still bedding in.

Dissenting voices. Reviews are heavily positive, but not unanimous. A small number of accounts push back hard on atmosphere and academic level. Worth reading the full spread rather than the top line, particularly given how small the cohort is and how much weight a single year-group can carry.

Small-school trade-offs. Around 200 pupils across PYP, MYP and DP means narrower DP option blocks, smaller sports and music programmes and a thinner peer pool than the bigger Brussels internationals. The intimacy parents value is the same fact that limits breadth.

Danielle Franzén