The International School of Brussels

Kattenberg 19, B-1170 Brussels, Belgium. It is in Watermael-Boitsfort, the south‑east quadrant of Brussels. The 40‑acre campus sits within the Forêt de Soignes and offers extensive outdoor learning facilities; it is easily reachable by car, bus, train and tram.

Early Childhood Centre (Preschool – Grade 2); Elementary School (Grade 3–6); Middle School (Grade 7–9); High School (Grade 10–12).

Private not-for-profit international day school.

60+ nationalities represented.

Inclusion & Challenge services provide personalised support for diverse learning needs across all age groups.

Belgium

The ISB Bus Service operates with more than 30 buses serving most parts of the city and surrounding areas. It is available to students from Kindergarten to Grade 12, with BatOnRoute real‑time tracking and bus monitors. Late Bus Service is available for Middle and High School students; bus fees for 2025‑26: Return 3,140 Euro; One way 2,385 Euro.

ISB uses English as the main language of instruction. French is offered from age 2.5, with a French bilingual programme from Grade 5; additional language options include Dutch, Spanish, and Japanese. The Home Language Programme integrates languages spoken at home into the curriculum. The curriculum is flexible and inquiry-based, with personalised learning pathways across ECC to High School.

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IB Diploma results for 2025 show 160 graduates, 141 IB Exams taken, 118 Diploma candidates, 27% of IB Courses with accommodations, an average IBDP score of 35, a 100% pass rate, 49% bilingual diplomas, and an average Course score of 5.5. AP results show 84 students (Grades 9–12) completed 136 exams in 13 subjects, with an average AP score of 3.84, 90% of exams scoring 3 or higher, 103 students taking AP Exams, 19 AP subjects taught, and 44% achieving a perfect score of 5. BTEC results show a 100% pass rate with 2 pathways offered and 33 students taking BTEC, with 27 students working towards external BTEC qualifications.

ISB offers five graduation pathways, including IB Diploma, AP, BTEC, US Diploma, and another pathway. Universities worldwide offered ISB students places in 2024-25, demonstrating strong progression to higher education globally.

The Inclusion & Challenge Department provides High-Ability Programmes for advanced learners.

ISB provides school-wide counselling services to support students and families. A dedicated Inclusion & Challenge Department brings together specialists in Learning Support, Counselling, Psychological Services, and Health to address academic, personal, and social needs. A Multidisciplinary Student Study Team develops tailored strategies to help students thrive. The school's approach promotes wellbeing through accessible professional support across grade levels.

An Inclusion & Challenge Department coordinates Learning Support and High-Ability Programmes to meet diverse learning needs. The department develops tailored strategies for individual students and collaborates with families and teachers to support learning. A multidisciplinary approach ensures appropriate challenge and support across age groups.

English Language Development (ELD) supports students who are still developing English, with specialist ELD teachers providing tailored in- and out-of-class support. Home Language Programme offers seven languages in the Lower School (Dutch, French, Hebrew, Japanese, Korean, Spanish, Swedish) and five in the Upper School, integrating language for learning and reading skills. ISB's bilingual learning pathways begin with French from 2.5 years old and may extend to core subjects taught in French or bilingual diplomas.

Counselling services at ISB proactively support students and parents on academic, personal, social, and career topics. Psychological Services provide personalised plans based on in‑house assessments and collaboration with external professionals, with strong links to local mental health experts. Health Services employ nurses, speech and language therapists, and occupational therapists to maintain a healthy learning environment.

ISB is committed to safeguarding and promoting the wellbeing of students. The school has a Board‑approved Code of Conduct and Child Protection Policy aligned with international safeguarding standards. The Designated Safeguarding Lead coordinates the Safeguarding Committee and implements practical procedures. Training on child protection occurs annually, and all staff undergo vetting, including a Certificate of Good Standing from Belgian authorities.

1. Submit the ISB admissions application with the required application fee. The application form must be accompanied by the application fee, and applications will not be processed until the full application fee is paid. If the application is withdrawn, 50% of the fee is refunded; if a Financial Aid application is denied or the family does not accept the offer and withdraws, 75% is refunded; if a completed application is placed in a waiting pool for 60 days and the family cancels, a full refund is available. 2. After the completed application is received, an admission decision is typically issued within 7 to 10 working days. A decision may be delayed if additional information is needed or during school-holiday periods. 3. Students can join ISB at any point during the school year, typically before 1 May. A suitable start date is determined in collaboration with the family and approved by the Head of School. IB Diploma students cannot begin after the beginning of October if their courses are not transferable to ISB. 4. Grade-level placement is based on the prior educational experience and the student's age. In some cases, a placement test may be given to accurately place a student. 5. The ISB Bus Service is the most popular transport for commuting to and from school. Some students may use public transportation, ride a bike, or be dropped off and picked up by their parents. 6. ISB runs waiting lists when necessary. When classes are full, a waiting pool for the affected class is opened, and the Admissions Team explains how waiting pools are managed. 7. ISB offers a limited number of financial aid opportunities each year based on eligibility criteria. ISB also provides an English Language Development Programme at all levels to support non-English-speaking students. 8. ISB has an Inclusion and Challenge Programme to meet learning needs and ensure appropriate placement. 9. The school day hours vary by section: ECC Preschool 08:40–15:30 (Mon, Tue, Thu, Fri) and 08:40–12:30 (Wed); ECC Pre-Kindergarten 08:40–15:30 (Mon, Tue, Thu, Fri) and 08:40–12:30 (Wed); ECC Kindergarten–Grade 2 08:40–15:35; Elementary School 08:40–15:35; Middle School 08:35–15:40; High School 08:35–15:40.

ISB offers a Financial Aid Programme to assist families experiencing temporary financial hardship; the aid is primarily designed for existing families and is available for a maximum of two consecutive years. Applications for Financial Aid must be submitted with the regular ISB application and supporting materials, and are considered up to March 31 until the budget is exhausted. ISB also offers a Scholarship Programme for merit-based scholarships open to students of all nationalities; these scholarships are offered for two consecutive years for Grades 7–12 and are designed to provide access to ISB for students not currently in the ISB community; scholarship criteria include English skills, high achievement in English, alignment with ISB's values and mission, overall academic achievement, and demonstrated talents. All scholarship applicants must complete the Scholarship Programme Form and attach supporting materials. Applications for the next school year should be received by March 31. The Scholarship Committee includes the School Director, the Director of Advancement, the Director of Finance and Operations, the Finance Manager, and an Academic Panel. For further questions about scholarships, contact the Admissions Office.

Yes, ISB runs waiting lists when classes are full. A waiting pool is opened for the affected class, and the Admissions Team explains how waiting pools are managed. Waiting lists help accommodate students when space becomes available.