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	The Perse School	1,735 pupils	Independent · Day · 6th	Unknown, East of England	— ISI · Good
2	Merchant Taylors' School	959 pupils	Independent · Day · 6th	Northwood, East of England	— ISI · Good
3	St Albans High School for Girls	1,128 pupils	Independent · Day · 6th	Unknown, East of England	— ISI · Good
4	Haberdashers' Girls' School	1,132 pupils	Independent · Day · 6th	Borehamwood, East of England	— ISI · Good
5	Haberdashers' Boys' School	1,457 pupils	Independent · Day · 6th	Unknown, East of England	—
6	St Albans School	887 pupils	Independent · Day · 6th	St Albans, East of England	— ISI · Good
7	Immanuel College	446 pupils	Independent · Day · 6th	Bushey, East of England	— ISI · Good
8	Bedford Girls' School	906 pupils	Independent · Day · 6th	Bedford, East of England	— ISI · Good
9	St Columba's College	830 pupils	Independent · Day · 6th	St Albans, East of England	—
10	Bedford Modern School	1,252 pupils	Independent · Day · 6th	Bedford, East of England	— ISI · Good
11	Norwich School	1,170 pupils	Independent · Day · 6th	Norwich, East of England	—
12	The Peterborough School	514 pupils	Independent · Day · 6th	Peterborough, East of England	— ISI · Good
13	Sherrardswood School	467 pupils	Independent · Day · 6th	Welwyn, East of England	— ISI · Good
14	Norwich High School for Girls GDST	563 pupils	Independent · Day · 6th	Unknown, East of England	— ISI · Good
15	Abbot's Hill School	423 pupils	Independent · Day	Hemel Hempstead, East of England	— ISI · Good
16	Bedford Greenacre Independent School	733 pupils	Independent · Day · 6th	Bedford, East of England	— ISI · Good
17	Gosfield School	368 pupils	Independent · Day · 6th	Unknown, East of England	— ISI · Good
18	OneSchool Global UK Colchester Campus	131 pupils	Independent · Day · 6th	Colchester, East of England	— ISI · Good
19	Thorpe Hall School	552 pupils	Independent · Day	Unknown, East of England	— ISI · Good
20	Colchester Prep & High School	281 pupils	Independent · Day	Colchester, East of England	— ISI · Good
21	Mander Portman Woodward	159 pupils	Independent · Day · 6th	Cambridge, East of England	—
22	Sancton Wood School	391 pupils	Independent · Day	Unknown, East of England	— ISI · Good
23	St Mary's School for Girls	419 pupils	Independent · Day · 6th	Colchester, East of England	—
24	Stanborough Secondary School	70 pupils	Independent · Day · 6th	Watford, East of England	— ISI · Good
25	OneSchool Global UK - Biggleswade Campus	165 pupils	Independent · Day · 6th	Biggleswade, East of England	—

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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.