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	Magdalen College School	950 pupils	Independent · Day · 6th	Oxford, South East	— ISI · Good
2	Guildford High School	1,021 pupils	Independent · Day · 6th	Guildford, South East	— ISI · Good
3	Royal Grammar School Guildford	1,311 pupils	Independent · Day · 6th	Unknown, South East	—
4	St Helen and St Katharine	711 pupils	Independent · Day · 6th	Abingdon, South East	— ISI · Good
5	Reigate Grammar School	1,564 pupils	Independent · Day · 6th	Reigate, South East	— ISI · Good
6	Claremont Fan Court School	1,189 pupils	Independent · Day · 6th	Unknown, South East	— ISI · Good
7	Notre Dame School	414 pupils	Independent · Day · 6th	Unknown, South East	— ISI · Good
8	The Portsmouth Grammar School	1,142 pupils	Independent · Day · 6th	Portsmouth, South East	— ISI · Good
9	Churcher's College	1,332 pupils	Independent · Day · 6th	Petersfield, South East	— ISI · Good
10	Oxford High School GDST	789 pupils	Independent · Day · 6th	Oxford, South East	— ISI · Good
11	The Abbey School Reading	905 pupils	Independent · Day · 6th	Reading, South East	— ISI · Good
12	Walthamstow Hall	473 pupils	Independent · Day · 6th	Sevenoaks, South East	— ISI · Good
13	Tormead School	771 pupils	Independent · Day · 6th	Guildford, South East	— ISI · Good
14	St George's College Weybridge	1,023 pupils	Independent · Day · 6th	Addlestone, South East	—
15	King Edward VI School	992 pupils	Independent · Day · 6th	Southampton, South East	— ISI · Good
16	Farnborough Hill	502 pupils	Independent · Day · 6th	Farnborough, South East	— ISI · Good
17	Sir William Perkins's School	528 pupils	Independent · Day · 6th	Unknown, South East	—
18	The Marist School	447 pupils	Independent · Day · 6th	Ascot, South East	— ISI · Good
19	Lewes Old Grammar School	694 pupils	Independent · Day · 6th	Unknown, South East	— ISI · Good
20	Lingfield College	951 pupils	Independent · Day · 6th	Lingfield, South East	— ISI · Good
21	St Edmunds school Trust Ltd	626 pupils	Independent · Day	Unknown, South East	—
22	Brighton Girls GDST	412 pupils	Independent · Day · 6th	Unknown, South East	— ISI · Good
23	Salesian College	566 pupils	Independent · Day · 6th	Farnborough, South East	— ISI · Good
24	Dunottar School	493 pupils	Independent · Day · 6th	Reigate, South East	— ISI · Good
25	Radnor House Sevenoaks	519 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.