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The Top IB Schools in the UK

This table is compiled based on the average IB score achieved by all students taking the exam in May 2025. The table is provisional and will be finalised following further submissions and remarks in September.

2025 Results

# Avg. Points Name Day/Board Boy/Girl Day £ Board £ Cohort Size
1 42.7 North London Collegiate School Day Girls 25,542   16
2 42.0 King's College School - Wimbledon Day Boys (Co-ed 6th form) 28,080   52
3 41.6 Godolphin & Latymer School Day Girls 28,742   26
4 40.4 Royal High School Bath Both Girls 17,658 40,374 7
5 40.1 Ardingly College Both Co-ed 30,318 46,422 36
6 39.8 Bromsgrove School Both Co-ed 20,775 46,470 53
7 39.3 The Abbey School - Reading Day Girls 22,725   21
8 39.1 Sevenoaks School Both Co-ed 34,896 53,550 245
= 39.1 Wellington College Both Co-ed 38,100 52,110 123
10 39.0 Redmaids' High School GDST Day Girls 18,255   11
11 38.9 Cheltenham Ladies' College Both Girls 35,700 54,000 27
12 38.5 Whitgift School Both Boys 26,055 51,120 28
13 38.2 King Edward's School - Birmingham Day Boys 18,324   110
14 38.0 Brentwood School Both Co-ed 24,411 46,835
15 37.5 Bristol Grammar School Day Co-ed 18,420   18
= 37.5 Fettes College Both Co-ed 39,450 46,980 38
17 37.3 Kent College Canterbury Both Co-ed 23,808 44,076 11
18 37.2 Gresham's School Both Co-ed 30,570 43,800 21
= 37.2 Haileybury Both Co-ed 34,620 47,835 63
20 37.1 Westbourne School Both Co-ed 18,648 47,290 11
= 37.1 Marymount International School London Both Girls 31,320 53,010
22 37.0 Charterhouse School Both Co-ed 40,017 50,148 27
= 37.0 Bedford School Both Boys 25,695 44,238 16
24 36.0 Leighton Park School Both Co-ed 29,910 48,105 11
= 36.0 Bedford Girls' School Day Girls 17,133  
= 36.0 Rugby School Both Co-ed 31,200 49,200 26
27 35.7 Southbank International School - Westminster Day Co-ed 39,195  
= 35.7 Rossall School Both Co-ed 17,760 45,330 31
29 35.3 Bradfield College Both Co-ed 39,096 48,870 56
30 35.2 Lycee International de Londres Winston Churchill Day Co-ed 24,599   19
= 35.2 St Leonards School Both Co-ed 19,704 46,446 75
32 35.1 St Clare's, Oxford Both Co-ed 23,592 49,310 120
33 35.0 ACS Hillingdon International School Day Co-ed 30,170  
34 34.9 Halcyon London International School Day Co-ed 34,080   25
35 34.7 Ryde School With Upper Chine Both Co-ed 17,550 39,390 8
36 34.3 TASIS England Both Co-ed 30,390 56,965 47
37 34.0 Bryanston School Both Co-ed 32,760 49,167 16
= 34.0 Felsted School Both Co-ed 30,540 46,755
39 33.9 Oakham School Both Co-ed 27,660 46,545 50
40 33.6 The Worthgate School Both Co-ed 17,490 48,480 11
41 33.0 International School of London, London Day Co-ed 32,200   33
= 33.0 ISA - International School Aberdeen Day Co-ed 17,350   23
= 33.0 Taunton School Both Co-ed 24,735 46,485 29
44 31.5 King William's College Both Co-ed 27,750 42,750 36
45 31.3 RGS Surrey Hills (formerly Box Hill School) Both Co-ed 25,287 45,657 17
46 31.0 Ellesmere College Both Co-ed 23,130 42,060 13
47 30.2 Warminster School Both Co-ed 22,920 41,250 24
48 27.8 Windermere School - Browhead Campus Both Co-ed 22,470 40,815 19

Most IB schools also offer A-levels as an alternative, in which case the IB cohort may be small. When viewing the league table it is important to bear in mind that the highest-performing schools are academically selective and generally oversubscribed.

Please contact us for advice about choosing and applying to an IB school. Call us on +44 303 003 2259 or click here to arrange a free consultation.