Top 10 IB Schools in the UK: A Comprehensive 2026 Guide
The International Baccalaureate (IB) Diploma Programme is an increasingly popular alternative to A Levels for students looking for a broad, academically rigorous and internationally recognised sixth-form qualification.
The UK is home to a growing number of IB World Schools, with schools offering the IB Diploma Programme across England, Scotland and Wales. According to the International Baccalaureate, there are currently 128 IB schools across the UK, serving almost 100,000 students across IB programmes.
In this guide, we explore some of the top-performing IB schools in the UK, based on recent IB Diploma results, alongside what makes each school distinctive.
What is the International Baccalaureate Diploma?
The International Baccalaureate Diploma Programme (IBDP) is a two-year qualification typically taken by students between the ages of 16-19.
Unlike A Levels, where students generally specialise in three or four subjects, the IB Diploma requires students to study six subjects, alongside three core components:
Theory of Knowledge (TOK) —> encouraging students to think critically about knowledge and how we know what we know.
The Extended Essay (EE) —> an independent research project of approximately 4,000 words.
Creativity, Activity, Service (CAS) —> a programme encouraging students to engage in creative, physical and community-based activities.
Students take three subjects at Higher Level (HL) and three at Standard Level (SL), providing both breadth and depth.
The IB can be particularly attractive to students who enjoy studying a broad range of subjects, are internationally minded and are considering applying to universities in the UK or overseas.
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The Top IB Schools in the UK
There are many excellent IB schools across the country, and rankings can change from year to year. The following schools are among the strongest performers based on recent published IB Diploma results:
King's College School, Wimbledon
Founded in 1829, King's College School, Wimbledon is one of the UK's leading independent schools for boys, with girls admitted into the Sixth Form. The school has an outstanding academic reputation and is consistently among the highest-performing IB schools in the UK.
Located in Wimbledon, the school combines a highly academic environment with an impressive range of opportunities outside the classroom. Students can participate in music, drama, sport, debating, societies and a wide variety of enrichment activities. The school's strong university destinations make it particularly attractive to families seeking a rigorous academic pathway towards leading UK and international universities.
Type: Boys' school, co-educational Sixth Form
Number of students: ~1,300
IB average score (2026): 42.5 points
Boarding/day options: Day
Location: Wimbledon, London
Entry Points: 11+, 13+, 16+
Take a look at our KCS 11+ blog HERE 💡
Sevenoaks School
Founded in 1432, Sevenoaks School is one of the oldest and most prestigious co-educational boarding and day schools in the UK. The school introduced the IB Diploma Programme in 1978 and has been a global leader in IB education ever since. With a strong emphasis on independent thinking, academic curiosity and international-mindedness, Sevenoaks is particularly well suited to students who thrive in a broad and challenging academic environment.
The school has a reputation for academic excellence alongside an extensive co-curricular programme, with opportunities across sport, music, drama, the arts and community service. Its facilities include The Space, a dedicated performing arts centre, as well as extensive sports and academic facilities. Sevenoaks is also distinctive in that all students in the Sixth Form take the IB Diploma, rather than choosing between IB and A Levels.
Type: Co-educational
Number of students: ~1,100
IB average score (2026): 39.6 points
Boarding/day options: Both
Location: Sevenoaks, Kent
Entry Points: 11+, 16+
Take a look at our Sevenoaks General Admissions blog HERE and our Sixth Form Admissions blog HERE💡
Godolphin & Latymer School
Founded in 1905, Godolphin & Latymer is a highly selective independent day school for girls in Hammersmith, West London. The school has an excellent academic reputation and is one of the UK's strongest IB schools, with students consistently achieving impressive Diploma results.
Godolphin & Latymer places considerable emphasis on intellectual curiosity, independence and confidence, encouraging students to explore their interests beyond the core curriculum. Alongside its academic programme, students benefit from a broad range of opportunities in music, drama, sport, debating, societies and community service. The school's location also provides access to the extensive cultural and educational opportunities available across London.
Type: Girls' school
Number of students: ~800
IB average score (2026): 41.2 points
Boarding/day options: Day
Location: Hammersmith, London
Entry Points: 11+, 16+
Take a look at our Godolphin & Latymer Admissions blog HERE 💡
Cheltenham Ladies' College
Founded in 1853, Cheltenham Ladies' College is one of the UK's most prestigious independent schools for girls and has a long-standing reputation for academic excellence. The school offers the IB Diploma Programme alongside A Levels, giving students the opportunity to select the pathway that best suits their academic interests and future plans.
The College is particularly well known for its combination of academic ambition and extensive co-curricular provision. Students can take part in music, drama, sport, art, outdoor pursuits and a wide variety of clubs and societies. With both day and boarding options, CLC attracts students from across the UK and internationally and offers a genuinely global school community.
Type: Girls' school
Number of students: ~850
IB average score (2026): 40.6 points
Boarding/day options: Both
Location: Cheltenham, Gloucestershire
Entry Points: 11+, 13+, 16+
Whitgift School
Founded in 1596, Whitgift School is an independent day and boarding school for boys in South Croydon. The school has a strong academic reputation and offers the IB Diploma as part of its Sixth Form programme, providing students with an internationally recognised alternative to traditional A Levels.
Whitgift is known for its extensive facilities and broad co-curricular programme, with particularly strong opportunities in sport, music and the arts. The school also places significant emphasis on developing well-rounded students, with opportunities for leadership, service and enrichment alongside academic study.
Type: Boys' school
Number of students: ~1,500
IB average score (2026): 40.3 points
Boarding/day options: Both
Location: South Croydon, London
Entry Points: 10+, 11+, 13+, 16+
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Wellington College
Founded in 1859, Wellington College is a prestigious co-educational boarding and day school in Berkshire. The school offers the IB Diploma alongside A Levels and has developed a strong reputation for academic achievement, pastoral care and its extensive range of co-curricular opportunities.
The College's large campus provides exceptional facilities for sport, performing arts, music and outdoor activities, while its academic programme encourages students to think independently and engage with subjects beyond the requirements of their examinations. Wellington's boarding community also makes it an attractive option for families seeking a traditional British boarding-school experience alongside an internationally recognised qualification.
Type: Co-educational
Number of students: ~1,100
IB average score (2026): 39.1 points
Boarding/day options: Both
Location: Crowthorne, Berkshire
Entry Points: 13+, 16+
Take a look at our Wellington 13+ Admissions blog HERE 💡
Ardingly College
Founded in 1858, Ardingly College is a co-educational independent day and boarding school in West Sussex. The school offers the IB Diploma alongside other sixth-form pathways and has established itself as one of the UK's leading IB schools.
Ardingly combines a strong academic programme with an extensive range of opportunities outside the classroom. Students can participate in sport, music, drama, outdoor education and community service, while the school's boarding environment provides a particularly strong sense of community. Its location in the Sussex countryside also gives students access to a large and attractive campus.
Type: Co-educational
Number of students: ~1,000
IB average score (2026): 39.5 points
Boarding/day options: Both
Location: Haywards Heath, West Sussex
Entry Points: 13+, 16+
Bromsgrove School
Founded in 1553, Bromsgrove School is a co-educational independent day and boarding school in Worcestershire. The school has a strong international outlook and offers the IB Diploma as part of its Sixth Form curriculum.
Bromsgrove aims to provide a balance between academic achievement and personal development. Students have access to a wide range of opportunities across sport, music, drama, the arts and community service, alongside a rigorous academic programme. Its co-educational and boarding environment attracts students from both the UK and overseas.
Type: Co-educational
Number of students: ~1,600
IB average score (2026): 38.4 points
Boarding/day options: Both
Location: Bromsgrove, Worcestershire
Entry Points: 13+, 16+
King Edward's School, Birmingham
Founded in 1552, King Edward's School, Birmingham is one of the UK's leading independent day schools for boys and has a long-standing reputation for academic excellence. The school offers the IB Diploma Programme in its Sixth Form, providing students with a broad and internationally recognised alternative to A Levels. In the latest 2026 IB results, students achieved an impressive average score of 38.3 points, with 46% of the cohort achieving 40 points or above.
The school combines a rigorous academic education with an extensive range of extracurricular opportunities, including music, drama, sport, debating and numerous academic societies. Its strong university destinations and emphasis on independent thought make it an attractive option for academically ambitious students considering both UK and international universities.
Type: Boys' school
Number of students: ~850
IB average score (2026): 38.3 points
IB cohort (2026): 90
Boarding/day options: Day
Location: Birmingham, West Midlands
Entry Points: 11+, 16+
Fettes College
Founded in 1870, Fettes College is a prestigious co-educational day and boarding school in Edinburgh. Often described as one of Scotland's leading independent schools, Fettes combines a traditional British boarding-school environment with an internationally focused academic programme, including the IB Diploma Programme.
In the latest 2026 IB results, Fettes students achieved an average score of 38.1 points, placing the school among the UK's top-performing IB schools. With a cohort of 50 students, these results demonstrate a strong level of academic achievement across the school's IB programme.
The school is set within an extensive campus close to the centre of Edinburgh and offers a broad range of opportunities beyond the classroom, including sport, music, drama, outdoor education and community service. Its combination of day and boarding provision makes Fettes an appealing option for families seeking a top IB boarding school in Scotland as well as those looking for a leading UK independent school.
Type: Co-educational
Number of students: ~800
IB average score (2026): 38.1 points
IB cohort (2026): 50
Boarding/day options: Both
Location: Edinburgh, Scotland
Entry Points: 11+, 13+, 16+
Other High-Performing UK IB schools
The schools featured in our Top 10 are not the only strong options for an IB education in the UK. Families considering the best IB schools in the UK may also wish to explore schools including North London Collegiate School, Haileybury, Charterhouse, Royal High School Bath, The Abbey School and St Clare's Oxford.
It is important to remember that IB rankings can vary from year to year, and a school's position in a league table does not necessarily reflect the overall quality or suitability of the school. Cohort size is particularly important when comparing results.
For example, North London Collegiate School recorded an outstanding average of 43.2 points in 2026, which is higher than every school in the main Top 10. However, this result was achieved by a cohort of just nine students, which is why the school is listed separately from the main ranking.
For parents researching IB schools in the UK, it is therefore worth looking beyond a school's league-table position and considering the size of its IB cohort, its academic strengths, subject choices, university destinations and the wider school experience.
What Should Parents Consider When Choosing an IB school?
Choosing an IB school is about more than finding the school with the highest average score. The right school will depend on your child's academic interests, learning style, university ambitions and personal circumstances:
IB results and cohort size
IB results are a useful starting point when comparing schools, but parents should look at the average score alongside the size of the IB cohort.
A small cohort can produce a very high average score, while a larger cohort may provide a more representative picture of the school's IB programme. It can also be useful to look at the proportion of students achieving 40+ points, as well as the number achieving the maximum score of 45.
Subject choices
The IB Diploma requires students to study six subjects, so it is essential to check that a prospective school offers the subjects your child wants to study.
This is particularly important when planning for competitive university courses. Students considering Medicine, Engineering, Economics, Computer Science or other specialist degrees should check the school's Higher Level subject combinations carefully and consider how these align with university entry requirements.
University destinations
A school's university destinations can provide valuable insight into the opportunities available to IB students after graduation.
The IB Diploma is recognised by universities worldwide, making it particularly attractive to students considering both UK and international higher education. Parents should look at the range of universities attended by recent graduates, rather than focusing solely on the number of students progressing to a small group of highly selective institutions.
Admissions process
Admissions requirements vary considerably between UK IB schools.
Depending on the age of entry, applicants may need to complete entrance examinations, interviews, school assessments or academic tests. Entry into the Sixth Form can be particularly competitive, with many schools requiring strong GCSE or equivalent results.
Families considering an independent school should therefore research the admissions process and key deadlines well in advance.
Day or boarding options
Families should also consider whether a day school or boarding school is the right fit for their child.
Many of the UK's leading IB schools offer both day and boarding places, while others are exclusively day schools. Looking beyond London can significantly increase the number of boarding options available, with highly regarded IB schools located across England and Scotland.
The school environment
Finally, it is important to consider whether the school's overall environment is right for your child.
The IB Diploma is academically demanding. Students must balance six subjects with the Extended Essay, Theory of Knowledge and Creativity, Activity, Service (CAS). A school that provides strong academic support, effective pastoral care and opportunities for students to pursue their interests outside the classroom can make a significant difference.
The school with the highest IB average is not necessarily the best IB school for your child. Finding the right balance between academic ambition, support and student wellbeing should be central to the decision.
IB vs A Levels: Which is Better?
There is no universal answer. Both are highly respected qualifications BUT they suit different types of students.
The IB Diploma may be particularly well suited to students who:
Enjoy studying a broad range of subjects
Want to maintain breadth alongside academic specialisation
Enjoy independent research and critical thinking
Are considering universities in the UK and overseas
Prefer a combination of examinations, coursework and ongoing assessment
Enjoy taking part in extracurricular and community activities
A Levels may be better suited to students who:
Prefer to specialise in a smaller number of subjects
Already have a clear idea of their intended university subject
Want to focus more intensively on three or four academic disciplines
Prefer a predominantly examination-based qualification
Want greater flexibility in choosing individual subjects
For students who are undecided about their future academic direction, the breadth of the IB can be particularly attractive. Conversely, students with a very specific academic goal may prefer the greater subject specialisation offered by A Levels.
Ultimately, the best choice depends on the individual student and their academic strengths, interests and future university plans.
How U2 Tuition Can Support with Entrance to top IB Schools in the UK
At U2 Tuition, we provide tailored one-to-one tuition for students at every stage of their education. Our tutors include experienced educators and graduates from leading UK universities and schools, allowing us to carefully match each student with a tutor suited to their academic goals and learning style.
How Can We Help?
For families applying to competitive independent schools, our tutors can provide support with 11+, 13+ and 16+ admissions, including academic preparation, interview preparation and subject-specific tuition.
We also support students studying the IB Diploma, helping them develop their subject knowledge, examination technique, essay-writing skills and confidence throughout their studies.
Whether your child is preparing for a competitive school entrance exam, beginning the IB Diploma or looking ahead to university, personalised tuition can help them approach each stage with greater confidence and a clear academic strategy.
