The IB at Southbank International School
The IB from Southbank International School is more than an education. It’s a grounding for the increasingly complex and demanding world we live in. A commitment to academic excellence and a uniquely liberal ethos. An inner belief and confidence carried for the rest of life - through university - through a career - into a lasting impact on the world.
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About our School
Southbank International School is the first school in the UK authorised to offer all three International Baccalaureate programmes
For more than 40 years, we’ve been at the forefront of providing internationally relevant, world class education.
At Southbank, experiences aren't just for the weekend or the holidays. It’s built into every day of the academic exploration and discovery of Southbank students. We help our students develop as independent, confident, curious and lifelong learners who fulfil their academic potential and take the natural next step into the world’s best universities.
We encourage our students to think critically and always challenge assumptions; developing an inner confidence to follow their path through university and into later life.
We ensure our students have an openness to the outside world and are ready to see other points of view. These qualities help our students develop to broaden their minds while excelling in their academic studies.
Join us for an Information Morning
At our Information Mornings you will have the opportunity to meet our key members of staff, and learn more about what a Southbank education looks like.
Please click below to register to attend our upcoming Information Morning. We can’t wait to meet you!
Academic Performance
We are extremely proud of our excellent IB results. Assessing our applicants’ academic performance and potential without using entrance exams has yielded IB scores that challenge those of the UK’s top selective independent and Grammar schools.
IBDP Results 2025: Outstanding Achievement across our Southbank Community
We are proud to share the exceptional results of our graduating Class of 2025 in the International Baccalaureate Diploma Programme (IBDP).
This year, 75 students completed the full Diploma. Their results reflect the hard work, intellectual ambition, and commitment that characterise a Southbank education.
These outcomes place Southbank among the leading IB schools globally. Just as importantly, they reflect the strength of our inclusive, student-centred approach - where academic achievement is balanced with critical thinking, creativity, and global awareness.
We congratulate all our students and thank our dedicated teachers, staff, and families for their continued support.
Key Highlights:
Average diploma score of 35.7 points, compared to the global average of 30.58
Over 25% of our students achieved 40 points or higher demonstrating our academic excellence
Two students scored 44 out of a possible 45 points, an exceptional accomplishment and one student scored 45 out of a possible 45 points, placing them in the top 1% globally
Mean subject grade of 5.6, outperforming the global average of 4.89
Over 60% of our students scored 35 points or higher
IB Learner Profile
The aim of all IB programmes is to develop internationally minded people who recognize their common humanity and help to create a better and more peaceful world.
The IB learner profile represents 10 attributes valued by IB World Schools which help individuals and groups become responsible members of local, national and global communities.
International Baccalaureate
- Primary, Middle Years & Diploma
- Bilingual Diploma offered
- 20 native languages taught at our Westminster campus
- Over 60 nationalities represented in student body
Extra Curricular Programme
- Wide range of sports
- High quality music and drama
- Team-building and leadership opportunities
- Educational trips and expeditions
Supportive Community
- Small class sizes
- Welcoming, intimate atmosphere
- Excellent relationships between students, staff and parents
- First-rate pastoral care
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