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	Latymer Upper School and Latymer Prep	1,428 pupils	Independent · Day · 6th	London, London	— ISI · Good
2	Highgate School	1,946 pupils	Independent · Day · 6th	Unknown, London	— ISI · Good
3	Forest School	1,590 pupils	Independent · Day · 6th	London, London	— ISI · Good
4	Bancroft's School	873 pupils	Independent · Day · 6th	Woodford Green, London	— ISI · Good
5	Colfe's School	1,308 pupils	Independent · Day · 6th	London, London	— ISI · Good
6	Eltham College	1,075 pupils	Independent · Day · 6th	London, London	— ISI · Good
7	Alleyn's School	1,450 pupils	Independent · Day · 6th	London, London	—
8	Kingston Grammar School	914 pupils	Independent · Day · 6th	Kingston upon Thames, London	— ISI · Good
9	Mill Hill School Foundation	1,767 pupils	Independent · Boarding · 6th	London, London	—
10	Emanuel School	1,108 pupils	Independent · Day · 6th	London, London	— ISI · Good
11	Kew House	554 pupils	Independent · Day · 6th	London, London	— ISI · Good
12	Ibstock Place School	1,048 pupils	Independent · Day · 6th	London, London	— ISI · Excellent
13	Royal Russell School	1,263 pupils	Independent · Boarding · 6th	Croydon, London	— ISI · Good
14	The Harrodian School	Good	Independent · Day · 6th	London, London	Good
15	St Benedict's School	1,135 pupils	Independent · Day · 6th	Unknown, London	—
16	The John Lyon School	832 pupils	Independent · Day · 6th	Harrow-on-the-Hill, London	—
17	St Dunstan's College	1,196 pupils	Independent · Day · 6th	LONDON, London	—
18	Knightsbridge School	378 pupils	Independent · Day	London, London	— ISI · Excellent
19	North Bridge House Senior Canonbury School	211 pupils	Independent · Day · 6th	Unknown, London	— ISI · Excellent
20	Radnor House	481 pupils	Independent · Day · 6th	Twickenham, London	— ISI · Good
21	Farringtons School	660 pupils	Independent · Boarding · 6th	Chislehurst, London	— ISI · Good
22	Hampton Court House	374 pupils	Independent · Day · 6th	East Molesey, London	— ISI · Good
23	Thames Christian School	209 pupils	Independent · Day · 6th	London, London	— ISI · Good
24	Brampton College	210 pupils	Independent · Day · 6th	London, London	— ISI · Good
25	St John's Preparatory and Senior School	497 pupils	Independent · Day · 6th	Potters Bar, London	—

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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.