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 200Page 1 of 8EES period: 202425

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#	School	Composite score	Type	Region	Ofsted
1	The Perse School	71.7 composite Ofsted13.5 AAB%13.2 VA10.7 Att816.6 EM5+17.7	Independent · Day · 6th	Unknown, East of England	—
2	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	—
3	Wimbledon High School GDST	63.7 composite AAB%12.0 VA12.2 Att818.7 EM5+20.8	Independent · Day · 6th	Unknown, London	—
4	North Bridge House Senior Canonbury School	63.5 composite Ofsted18.0 AAB%4.8 VA10.8 Att813.5 EM5+16.5	Independent · Day · 6th	Unknown, London	—
5	Manchester High School for Girls	62.1 composite Ofsted13.5 AAB%7.3 VA9.8 Att814.7 EM5+16.8	Independent · Day · 6th	Manchester, North West	—
6	Crosfields School	61.7 composite Ofsted18.5 Att819.2 EM5+24.0	Independent · Day	Reading, South East	—
7	The Queen's School	61.5 composite Ofsted13.5 AAB%8.2 VA11.2 Att813.5 EM5+15.1	Independent · Day · 6th	Chester, North West	—
8	City of London School	61.0 composite Ofsted13.5 AAB%11.8 VA10.1 Att87.8 EM5+17.7	Independent · Day · 6th	London, London	—
9	Northwood College for Girls GDST	60.6 composite Ofsted13.5 AAB%6.1 VA10.0 Att814.0 EM5+17.0	Independent · Day · 6th	Northwood, London	—
10	The Marist School	60.3 composite Ofsted13.5 AAB%5.2 VA10.6 Att814.4 EM5+16.7	Independent · Day · 6th	Ascot, South East	—
11	Nottingham Girls' High School GDST	60.1 composite Ofsted13.5 AAB%7.1 VA9.4 Att814.0 EM5+16.2	Independent · Day · 6th	Unknown, East Midlands	—
12	Red House School	59.9 composite Ofsted18.5 Att819.1 EM5+22.2	Independent · Day	Stockton-on-Tees, North East	—
13	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	—
14	Cranmore	59.2 composite Ofsted18.5 Att818.1 EM5+22.6	Independent · Day	Leatherhead, South East	—
15	The Maynard School	59.1 composite Ofsted13.5 AAB%8.2 VA10.0 Att812.1 EM5+15.3	Independent · Day · 6th	Exeter, South West	—
16	The Harrodian School	58.6 composite Ofsted10.1 AAB%5.6 VA10.6 Att815.1 EM5+17.2	Independent · Day · 6th	London, London	Good
17	Twycross House School	58.5 composite Ofsted13.5 AAB%6.5 VA9.9 Att812.9 EM5+15.7	Independent · Day · 6th	Atherstone, East Midlands	Outstanding
18	Salesian College	58.2 composite Ofsted13.5 AAB%2.9 VA9.9 Att814.4 EM5+17.5	Independent · Day · 6th	Farnborough, South East	—
19	Notre Dame School	58.1 composite Ofsted13.5 AAB%4.3 VA11.4 Att813.3 EM5+15.6	Independent · Day · 6th	Unknown, South East	—
20	Farnborough Hill	58.0 composite Ofsted13.5 AAB%6.8 VA10.5 Att812.7 EM5+14.5	Independent · Day · 6th	Farnborough, South East	—
21	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	—
22	Abbot's Hill School	57.3 composite Ofsted18.5 Att818.9 EM5+20.0	Independent · Day	Hemel Hempstead, East of England	—
23	St Helen's School	57.1 composite AAB%9.1 VA11.4 Att816.8 EM5+19.8	Independent · Day · 6th	Northwood, London	—
24	Derby High School	56.7 composite Ofsted13.5 AAB%5.6 VA9.9 Att812.0 EM5+15.7	Independent · Day · 6th	Derby, East Midlands	—
25	OneSchool Global UK Colchester Campus	56.0 composite Ofsted15.6 VA12.7 Att813.4 EM5+14.4	Independent · Day · 6th	Colchester, East of England	—

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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.