Secondary · 中学

Secondary · Independent (中学私立)

ISC-tier fee-paying secondary schools (HMC / GSA / IAPS members) with senior-school age range (≥16). Default order: continuous prestige score = manual tier (Clarendon Nine / HMC flagships) + DfE A-Level + GCSE + pupil count + boarding + destination signal. All 506 ISC schools ranked on one transparent scale. Click 'A-Level AAB %' for pure academic-merit. Excludes embassy / small religious / SEN micro-schools. Currently sorted by Composite score (period 202425). Composite = weighted Ofsted/ISI + A-Level + GCSE + KS2 + prep-destination signals.

Sort by:Ofsted Composite · A-Level Composite · GCSE Composite (all)A-Level AAB %A-Level APS / entry Value-addedGCSE Attainment 8 GCSE Eng+Maths 5+EBacc APS

BoardingAny Boarding Day

GenderAny Mixed (混合)Boys (男校)Girls (女校)

RegionUK-wide London South East South West East of England West Midlands East Midlands North West North East Yorkshire and the Humber

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Showing 1–25 of 180Page 1 of 8EES period: 202425

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#	School	Composite score	Type	Region	Ofsted
1	St Helen and St Katharine	66.0 composite Ofsted13.5 AAB%10.4 VA10.2 Att814.4 EM5+17.6	Independent · Day · 6th	Abingdon, South East	—
2	Winchester College	64.2 composite Ofsted18.0 AAB%12.3 VA10.6 Att88.1 EM5+15.1	Independent · Boarding · 6th	Winchester, South East	—
3	Crosfields School	61.7 composite Ofsted18.5 Att819.2 EM5+24.0	Independent · Day	Reading, South East	—
4	The Marist School	60.3 composite Ofsted13.5 AAB%5.2 VA10.6 Att814.4 EM5+16.7	Independent · Day · 6th	Ascot, South East	—
5	Claremont Fan Court School	59.3 composite Ofsted13.5 AAB%4.2 VA11.4 Att813.7 EM5+16.5	Independent · Day · 6th	Unknown, South East	—
6	Cranmore	59.2 composite Ofsted18.5 Att818.1 EM5+22.6	Independent · Day	Leatherhead, South East	—
7	Salesian College	58.2 composite Ofsted13.5 AAB%2.9 VA9.9 Att814.4 EM5+17.5	Independent · Day · 6th	Farnborough, South East	—
8	Notre Dame School	58.1 composite Ofsted13.5 AAB%4.3 VA11.4 Att813.3 EM5+15.6	Independent · Day · 6th	Unknown, South East	—
9	Farnborough Hill	58.0 composite Ofsted13.5 AAB%6.8 VA10.5 Att812.7 EM5+14.5	Independent · Day · 6th	Farnborough, South East	—
10	Lewes Old Grammar School	57.6 composite Ofsted13.5 AAB%5.6 VA12.7 Att812.1 EM5+13.6	Independent · Day · 6th	Unknown, South East	—
11	Meoncross School	54.8 composite Ofsted18.5 Att817.8 EM5+18.5	Independent · Day	Unknown, South East	—
12	Downsend School	54.1 composite Ofsted18.5 Att816.7 EM5+18.9	Independent · Day · 6th	Leatherhead, South East	—
13	Baytul Ilm Secondary School	54.1 composite Ofsted18.5 Att815.6 EM5+20.1	Independent · Day	Unknown, South East	—
14	The Webber Independent School	54.1 composite Ofsted18.5 Att816.7 EM5+18.8	Independent · Day	Unknown, South East	—
15	d'Overbroeck's	54.0 composite AAB%6.8 VA13.2 Att814.9 EM5+18.9	Independent · Boarding · 6th	Oxford, South East	—
16	Ditcham Park School	53.9 composite Ofsted18.5 Att816.4 EM5+19.0	Independent · Day	Petersfield, South East	—
17	Long Close School	53.9 composite Ofsted18.5 Att816.6 EM5+18.8	Independent · Day	Slough, South East	—
18	Brighton Girls GDST	53.3 composite Ofsted13.5 AAB%3.9 VA10.0 Att812.5 EM5+13.4	Independent · Day · 6th	Unknown, South East	—
19	Thornton College	53.2 composite Ofsted13.5 AAB%5.6 VA10.3 Att812.4 EM5+11.3	Independent · Boarding · 6th	Milton Keynes, South East	—
20	Radnor House Sevenoaks	53.1 composite Ofsted13.5 AAB%3.7 VA11.0 Att810.4 EM5+14.5	Independent · Day · 6th	Unknown, South East	—
21	Sherfield School	52.1 composite Ofsted13.5 AAB%0.0 VA10.7 Att813.3 EM5+14.7	Independent · Boarding · 6th	Hampshire, South East	—
22	St Nicholas' School	52.0 composite Ofsted18.5 Att815.9 EM5+17.5	Independent · Day	Fleet, South East	—
23	St James Senior Boys' School	50.6 composite Ofsted13.5 AAB%3.1 VA9.6 Att811.6 EM5+12.8	Independent · Day · 6th	Ashford, South East	—
24	Thorpe House School	50.1 composite Ofsted18.5 Att815.2 EM5+16.5	Independent · Day · 6th	Gerrards Cross, South East	—
25	Shoreham College	49.8 composite Ofsted18.5 Att815.4 EM5+15.9	Independent · Day	Unknown, South East	—

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Source: GIAS school register + Ofsted Management Information — open licence, weekly refresh.

Composite caveats: Independent schools mostly don't submit to DfE EES, so they appear with low completeness scores (or not at all in the composite ranking). The composite mixes A-Level (Y13) and GCSE (Y11) signals — schools without a sixth form get a small completeness penalty even though it isn't a quality issue. For Independent senior schools, the destination-edge rankings (Oxford / Cambridge feeders) are usually more meaningful than this score.

Note on Independent schools: most are inspected by ISI, not Ofsted, so the Ofsted column is empty for many entries. ISI bulk data is not publicly available — sorting by A-Level metrics gives a more meaningful order for this slice.