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 69Page 1 of 3EES period: 202425⚠️ Small sample: 69 schools matched all filters

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#	School	Composite score	Type	Region	Ofsted
1	Winchester College	64.2 composite Ofsted18.0 AAB%12.3 VA10.6 Att88.1 EM5+15.1	Independent · Boarding · 6th	Winchester, South East	—
2	Westminster School	63.3 composite Ofsted13.5 AAB%12.6 VA9.6 Att89.7 EM5+17.9	Independent · Boarding · 6th	London, London	—
3	City of London School	61.0 composite Ofsted13.5 AAB%11.8 VA10.1 Att87.8 EM5+17.7	Independent · Day · 6th	London, London	—
4	Cranmore	59.2 composite Ofsted18.5 Att818.1 EM5+22.6	Independent · Day	Leatherhead, South East	—
5	Salesian College	58.2 composite Ofsted13.5 AAB%2.9 VA9.9 Att814.4 EM5+17.5	Independent · Day · 6th	Farnborough, South East	—
6	Baytul Ilm Secondary School	54.1 composite Ofsted18.5 Att815.6 EM5+20.1	Independent · Day	Unknown, South East	—
7	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	—
8	Thorpe House School	50.1 composite Ofsted18.5 Att815.2 EM5+16.5	Independent · Day · 6th	Gerrards Cross, South East	—
9	Derby Grammar School	49.5 composite Ofsted13.5 AAB%3.0 VA9.0 Att812.0 EM5+12.0	Independent · Day · 6th	Unknown, East Midlands	—
10	London Islamic School	46.4 composite Ofsted13.9 Att816.1 EM5+16.5	Independent · Day	London, London	Good
11	Al Risalah Boys' School	46.0 composite Ofsted13.9 Att814.7 EM5+17.5	Independent · Day	London, London	Good
12	The Manchester Grammar School	45.4 composite Ofsted13.5 AAB%12.4 VA10.9 Att88.6 EM5+0.0	Independent · Day · 6th	Manchester, North West	—
13	London East Academy	45.3 composite Ofsted13.9 Att815.3 EM5+16.2	Independent · Day	London, London	Good
14	Hampton School	43.6 composite Ofsted18.0 AAB%11.1 VA10.2 Att84.3 EM5+0.0	Independent · Day · 6th	Hampton, London	—
15	Abingdon School	43.5 composite Ofsted18.0 AAB%10.6 VA11.6 Att83.3 EM5+0.0	Independent · Boarding · 6th	Abingdon, South East	—
16	Loughborough Grammar School	42.0 composite Ofsted13.5 AAB%8.6 VA9.8 Att810.1 EM5+0.0	Independent · Boarding · 6th	Loughborough, East Midlands	—
17	Eton College	39.3 composite Ofsted13.5 AAB%11.5 VA9.5 Att84.8 EM5+0.0	Independent · Boarding · 6th	Windsor, South East	—
18	Queen Elizabeth Grammar School	38.8 composite Ofsted13.5 AAB%6.3 VA10.3 Att88.8 EM5+0.0	Independent · Day · 6th	Wakefield, Yorkshire and the Humber	—
19	Warwick School	38.6 composite Ofsted13.5 AAB%7.3 VA11.1 Att86.7 EM5+0.0	Independent · Boarding · 6th	Warwick, West Midlands	—
20	Radley College	38.6 composite Ofsted13.5 AAB%7.4 VA10.4 Att87.2 EM5+0.0	Independent · Boarding · 6th	Unknown, South East	—
21	Merchant Taylors' School	38.4 composite Ofsted13.5 AAB%9.5 VA11.1 Att84.3 EM5+0.0	Independent · Day · 6th	Northwood, East of England	—
22	Queen Elizabeth's Hospital	38.0 composite Ofsted13.5 AAB%6.7 VA9.6 Att88.2 EM5+0.0	Independent · Day · 6th	Bristol, South West	—
23	Dulwich College	37.8 composite Ofsted13.5 AAB%11.1 VA9.9 Att83.4 EM5+0.0	Independent · Boarding · 6th	London, London	—
24	Dulwich Prep & Senior	37.5 composite Ofsted37.5	Independent · Boarding	Unknown, London	—
25	Harrow School	36.5 composite Ofsted13.5 AAB%8.0 VA10.0 Att85.0 EM5+0.0	Independent · Boarding · 6th	Harrow-on-the-Hill, London	—

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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.