Top 50 Schools for the IB Diploma

The Top 50 Private School IB Diploma League Table for 2026

This table lists the top independent schools in the UK based on their 2026 IB Diploma results. Rankings are determined by each school’s average point score from a maximum of 45 points.

The global average forĀ  2026 was 30.9, whilst British schools averaged 35.1.

Please click on a school name for more information or get in touch to discuss how TSG can help you apply to the best IB schools in the UK.

Rank IB Diploma Score School Gender Region Boarding
1 IB Diploma Score: 43.20 School: North London Collegiate School Gender: Girls Region: London Boarding: Day
2 IB Diploma Score: 42.10 School: King’s College School Wimbledon Gender: Co-ed Region: London Boarding: Day
3 IB Diploma Score: 41.10 School: The Godolphin and Latymer School Gender: Girls Region: London Boarding: Day
4 IB Diploma Score: 40.30 School: Whitgift School Gender: Boys Region: London Boarding: Day, Boarding
5 IB Diploma Score: 40.20 School: Cheltenham Ladies’ College Gender: Girls Region: South West Boarding: Day, Boarding
6 IB Diploma Score: 39.60 School: Sevenoaks School Gender: Co-ed Region: South East Boarding: Day, Boarding
7 IB Diploma Score: 39.10 School: Ardingly College Gender: Co-ed Region: South East Boarding: Day, Boarding
8 IB Diploma Score: 39.10 School: Wellington College Gender: Co-ed Region: South East Boarding: Day, Boarding
9 IB Diploma Score: 38.30 School: Bromsgrove School Gender: Co-ed Region: West Midlands Boarding: Day, Boarding
10 IB Diploma Score: 38.20 School: Kent College Canterbury Gender: Co-ed Region: South East Boarding: Day, Boarding
11 IB Diploma Score: 38.20 School: King Edward’s School, Birmingham Gender: Boys Region: West Midlands Boarding: Day
12 IB Diploma Score: 38.00 School: Bedford Girls’ School Gender: Girls Region: Anglia Boarding: Day,
13 IB Diploma Score: 38.00 School: Fettes College Gender: Co-ed Region: Scotland Boarding: Day, Boarding
14 IB Diploma Score: 38.00 School: Bristol Grammar School Gender: Co-ed Region: South West Boarding: Day,
15 IB Diploma Score: 37.50 School: Haileybury Gender: Co-ed Region: Anglia Boarding: Day, Boarding
16 IB Diploma Score: 37.50 School: Charterhouse Gender: Co-ed Region: South East Boarding: Day, Boarding
17 IB Diploma Score: 37.00 School: Bradfield College Gender: Co-ed Region: South East Boarding: Day, Boarding
18 IB Diploma Score: 37.00 School: Brentwood School Gender: Co-ed Region: Anglia Boarding: Day, Boarding
19 IB Diploma Score: 37.00 School: Ecole Jeannine Manuel Gender: Co-ed Region: London Boarding: Day,
20 IB Diploma Score: 37.00 School: ACS Hillingdon Gender: Co-ed Region: South East Boarding: Day,
21 IB Diploma Score: 36.10 School: Marymount International School London Gender: Girls Region: London Boarding: Day, Boarding
22 IB Diploma Score: 36.00 School: Stonyhurst College Gender: Co-ed Region: North West Boarding: Day, Boarding
23 IB Diploma Score: 35.80 School: Ryde School with Upper Chine Gender: Co-ed Region: South East Boarding: Day, Boarding
24 IB Diploma Score: 35.40 School: St Clare’s Oxford Gender: Co-ed Region: South East Boarding: Day, Boarding
25 IB Diploma Score: 35.20 School: Rossall School Gender: Co-ed Region: North West Boarding: Day, Boarding
26 IB Diploma Score: 35.00 School: Dwight School London Gender: Co-ed Region: London Boarding: Day,
27 IB Diploma Score: 35.00 School: St Leonards Gender: Co-ed Region: Scotland Boarding: Day, Boarding
28 IB Diploma Score: 35.00 School: Leighton Park School Gender: Co-ed Region: South East Boarding: Day, Boarding
29 IB Diploma Score: 35.00 School: ACS Cobham Gender: Co-ed Region: South East Boarding: Day, Boarding
30 IB Diploma Score: 35.00 School: Southbank International School Gender: Co-ed Region: London Boarding: Day,
31 IB Diploma Score: 34.80 School: Oakham School Gender: Co-ed Region: East Midlands Boarding: Day, Boarding
32 IB Diploma Score: 34.80 School: Gresham’s School Gender: Co-ed Region: Anglia Boarding: Day, Boarding
33 IB Diploma Score: 34.20 School: King William’s College Gender: Co-ed Region: North West Boarding: Day, Boarding
34 IB Diploma Score: 34.20 School: Lycee International de Londres Winston Churchill Gender: Co-ed Region: London Boarding: Day,
35 IB Diploma Score: 34.00 School: TASIS The American School in England Gender: Co-ed Region: South East Boarding: Day, Boarding
36 IB Diploma Score: 34.00 School: Felsted School Gender: Co-ed Region: Anglia Boarding: Day, Boarding
37 IB Diploma Score: 34.00 School: ACS Egham Gender: Co-ed Region: South East Boarding: Day,
38 IB Diploma Score: 33.50 School: Windermere School Gender: Co-ed Region: North West Boarding: Day, Boarding
39 IB Diploma Score: 33.40 School: Taunton School Gender: Co-ed Region: South West Boarding: Day, Boarding
40 IB Diploma Score: 33.20 School: The Worthgate School (formerly CATS Canterbury) Gender: Co-ed Region: South East Boarding: Day, Boarding
41 IB Diploma Score: 33.00 School: International School of London (ISL) Gender: Co-ed Region: London Boarding: Day,
42 IB Diploma Score: 33.00 School: Scarborough College Gender: Co-ed Region: Yorks/Humber Boarding: Day, Boarding
43 IB Diploma Score: 33.00 School: Lomond School Gender: Co-ed Region: Scotland Boarding: Day, Boarding
44 IB Diploma Score: 33.00 School: Bryanston School Gender: Co-ed Region: South West Boarding: Day, Boarding
45 IB Diploma Score: 33.00 School: Halcyon London International School Gender: Co-ed Region: London Boarding: Day,
46 IB Diploma Score: 32.00 School: Ellesmere College Gender: Co-ed Region: West Midlands Boarding: Day, Boarding
47 IB Diploma Score: 32.00 School: International School of Aberdeen Gender: Co-ed Region: Scotland Boarding: Day,
48 IB Diploma Score: 31.40 School: Warminster School Gender: Co-ed Region: South West Boarding: Day, Boarding
49 IB Diploma Score: 31.00 School: Buckswood School Gender: Co-ed Region: South East Boarding: Day, Boarding
50 IB Diploma Score: 29.30 School: International Community School (ICS) London Gender: Co-ed Region: London Boarding: Day,
Important
  1. All exam result data is for results issued in the summer of 2025, unless otherwise stated. Data is compiled from reliable, official sources and updated when sufficient results have been acquired. Results are updated and amended whenever new information becomes available.
  2. U/A = results are unavailable. N/A = the school does not offer this curriculum.
  3. Rating exam results by % of entries at A*-A (A-level), % of entries at 7,8,9 (GCSE) or average IB score per candidate is common practice. However, the format in which the data is presented (specifically, the column headings and calculations conceived for subject-specific league tables and the BTEC league table) is the copyright material of Top School Guide and protected by database right. The content is for personal, non-commerical use only, and you may not reproduce, republish, copy, or otherwise use the format or content in any way.
  4. League tables should not be used in isolation to identify suitable schools. Every effort is made to verify the data within these tables, but Top School Guide does not accept any liability for your reliance on the information on this site, or any errors or ommissions. Please see our terms for further information.
  5. Amendments, corrections, and requests to republish can be submitted to hello@topschoolguide.com.
  6. Likewise, should you have any personal requests for data you cannot find in our league tables, we would be pleased for you to get in touch.

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