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.

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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#	School	Ofsted	Type	Region	Ofsted
1	Guildford High School	1,021 pupils	Independent · Day · 6th	Guildford, South East	— ISI · Good
2	Wycombe Abbey	644 pupils	Independent · Boarding · 6th	High Wycombe, South East	— ISI · Good
3	Tudor Hall School	277 pupils	Independent · Boarding · 6th	Banbury, South East	— ISI · Good
4	Headington Rye Oxford	1,150 pupils	Independent · Boarding · 6th	Oxford, South East	—
5	Benenden School	532 pupils	Independent · Boarding · 6th	Cranbrook, South East	— ISI · Good
6	Downe House	542 pupils	Independent · Boarding · 6th	Thatcham, South East	— ISI · Good
7	Roedean School	615 pupils	Independent · Boarding · 6th	Brighton, South East	— ISI · Good
8	St Helen and St Katharine	711 pupils	Independent · Day · 6th	Abingdon, South East	— ISI · Good
9	Queen Anne's School	361 pupils	Independent · Boarding · 6th	Reading, South East	— ISI · Good
10	St Swithuns	715 pupils	Independent · Boarding · 6th	Unknown, South East	—
11	Heathfield School	185 pupils	Independent · Boarding · 6th	Ascot, South East	— ISI · Good
12	Notre Dame School	414 pupils	Independent · Day · 6th	Unknown, South East	— ISI · Good
13	Woldingham School	534 pupils	Independent · Boarding · 6th	Caterham, South East	— ISI · Good
14	Oxford High School GDST	789 pupils	Independent · Day · 6th	Oxford, South East	— ISI · Good
15	St Catherine's School	838 pupils	Independent · Boarding · 6th	Guildford, South East	—
16	St Mary's School Ascot	384 pupils	Independent · Boarding · 6th	Ascot, South East	—
17	The Abbey School Reading	905 pupils	Independent · Day · 6th	Reading, South East	— ISI · Good
18	Walthamstow Hall	473 pupils	Independent · Day · 6th	Sevenoaks, South East	— ISI · Good
19	Tormead School	771 pupils	Independent · Day · 6th	Guildford, South East	— ISI · Good
20	Farnborough Hill	502 pupils	Independent · Day · 6th	Farnborough, South East	— ISI · Good
21	Thornton College	358 pupils	Independent · Boarding · 6th	Milton Keynes, South East	— ISI · Good
22	Sir William Perkins's School	528 pupils	Independent · Day · 6th	Unknown, South East	—
23	The Marist School	447 pupils	Independent · Day · 6th	Ascot, South East	— ISI · Good
24	Kent College Pembury	418 pupils	Independent · Boarding · 6th	Tunbridge Wells, South East	— ISI · Excellent
25	Brighton Girls GDST	412 pupils	Independent · Day · 6th	Unknown, South East	— ISI · Good

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

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.