Independent IB Schools (Small Cohort)

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2019 vs 2020 results

2020 pupil grades were derived from Centre Assessed Grades rather than examinations. As a result, significant GCSE and A-level grade inflation has been widely noted in private schools. Thus, we felt it would be extremely unfair to produce new 2020 league tables.

Instead, we have gathered 2020's scores and simply recorded them on the right-hand side of the table, retaining 2019’s league table positions and scores on the left. Further historical results are made available to our consultancy clients.

2019 Results

# Avg. Points (2019) Name Day/Board Boy/Girl Day £ Board £ Cohort Size Avg. Points (2020)
1 40.9 North London Collegiate School Day Girls 20,430   18
2 40.4 Stephen Perse Foundation Day Co-ed (Diamond model 11 - 16) 17,490   16 39.9
3 39.2 Abbey School - Reading Day Girls 18,000   18
4 36.7 Kent College - Canterbury Both Co-ed 18,864 35,628 13 37.0
= 36.7 Westbourne School Both Co-ed 14,010 35,850 11
6 36.5 Sherborne Girls Both Girls 21,975 37,050 17
7 35.4 Redmaids' High School Day Girls 15,075   18 36.0
8 34.1 International School of Aberdeen Day Co-ed     14
= 34.1 Gresham's School Both Co-ed 27,000 37,890 16
10 32.1 International Community School Day Co-ed 28,750   14
11 31.0 Ellesmere College Both Co-ed 18,990 34,533 12
12 28.0 Buckswood School Both Co-ed   30,300 18

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This table lists the Top Small Cohort IB Schools in the UK for 2019. These positions are compiled from the average points achieved by sixth formers taking the Diploma Programme of the IB. Note that the IB is still a relatively new qualification for UK schools and many have not been offering it sufficiently long to have results to publish. The International Baccalaureate Organisation refuses to publish results and we have had to collect these statistics by asking each school individually. We show two league tables - this small cohort table is for schools with IB DP cohorts of 19 or less and more than 10. If a school has fewer than 10 pupils doing the IBDP their scores are not statistically credible and additionally we would not recommend them because their numbers are too small to offer a good range of IB subjects. A small cohort school will inevitably be offering other curriculums such as A Levels. Speak to us on 01622 813870 for advice.

Click on the name of a school for more details. The table can be reordered by Name, Ranking, Day or Boarding Fees etc by clicking on the arrows at the top of each column.


  1. We make every effort to obtain results for every independent school, but there are sometimes a few gaps in our data, because the information is not freely available or because a school will not supply it. In most cases this applies to schools that would not appear in the top quartile of the table.
  2. Sometimes grades improve as a result of appeals or remarks and we may update the data periodically, as long it does not distort the results of schools which have not given us their remarks. We encourage all schools to supply corrections or additions by contacting us at
  3. Exam results are not the only criteria by which to judge a school. Schools at the top of this table may be very selective on their admissions. Be aware that your child may not necessarily thrive in a high pressure academic environment. Please contact us for advice on choosing the right school.
  4. We make a substantial investment of time and effort in preparing these tables, and all copyright and database rights in the tables belong to us. Please respect this by not reproducing the tables or the information within them, in whole or in part, without our consent. If you wish to reproduce any of our tables or the information within them then please contact us for details.