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
51	Saint Felix School	244 pupils	Independent · Boarding · 6th	Southwold, East of England	— ISI · Good
52	Abbot's Hill School	423 pupils	Independent · Day	Hemel Hempstead, East of England	— ISI · Good
53	Bedford Greenacre Independent School	733 pupils	Independent · Day · 6th	Bedford, East of England	— ISI · Good
54	Gosfield School	368 pupils	Independent · Day · 6th	Unknown, East of England	— ISI · Good
55	OneSchool Global UK Colchester Campus	131 pupils	Independent · Day · 6th	Colchester, East of England	— ISI · Good
56	St Joseph's College	577 pupils	Independent · Boarding · 6th	Ipswich, East of England	—
57	Thorpe Hall School	552 pupils	Independent · Day	Unknown, East of England	— ISI · Good
58	Colchester Prep & High School	281 pupils	Independent · Day	Colchester, East of England	— ISI · Good
59	St Mary's School	586 pupils	Independent · Boarding · 6th	cambridge, East of England	—
60	Mander Portman Woodward	159 pupils	Independent · Day · 6th	Cambridge, East of England	—
61	Sancton Wood School	391 pupils	Independent · Day	Unknown, East of England	— ISI · Good
62	Holmwood House School	392 pupils	Independent · Boarding	Colchester, East of England	— ISI · Excellent
63	St Mary's School for Girls	419 pupils	Independent · Day · 6th	Colchester, East of England	—
64	Stanborough Secondary School	70 pupils	Independent · Day · 6th	Watford, East of England	— ISI · Good
65	St. Andrew's College Cambridge	151 pupils	Independent · Boarding · 6th	Cambridge, East of England	—
66	OneSchool Global UK - Biggleswade Campus	165 pupils	Independent · Day · 6th	Biggleswade, East of England	—
67	Egerton-Rothesay School	159 pupils	Independent · Day · 6th	Berkhamsted, East of England	— ISI · Good
68	Heritage School	197 pupils	Independent · Day	Cambridge, East of England	— ISI · Good
69	Summerhill School	53 pupils	Independent · Boarding · 6th	Leiston, East of England	— ISI · Good
70	The King's School	176 pupils	Independent · Day	Harpenden, East of England	—
71	Saint Nicholas School	489 pupils	Independent · Day	Essex, East of England	—
72	Felixstowe International College	33 pupils	Independent · Boarding · 6th	Felixstowe, East of England	— ISI · Good
73	OneSchool Global UK - Swaffham Campus	84 pupils	Independent · Day · 6th	Swaffham, East of England	—
74	Bury Park Educational Institute (Al - Hikmah Secondary School)	154 pupils	Independent · Day · 6th	LUTON, East of England	— ISI · Unsatisfactory
75	St John's School	280 pupils	Independent · Day	Unknown, 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.