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School · SecondaryiSource and licenceOfficial record from Get Information about Schools (DfE). Results, attendance, pupil numbers, finance and inspection outcomes are from the Department for Education and Ofsted, as published.Contains public sector information licensed under the Open Government Licence v3.0.Governance Register calculates the connections.How we handle data

The Kingsbrook School

Free schools secondary school in Aylesbury (Buckinghamshire).

Attainment 8
-
not published
English & maths 5+
-
not published
Attendance rate
91.4%
▼ 0.2pp England 2024/25: 91.6%
2024/25 academic year
Pupil : Teacher
17.9
▲ 1.2 England 2025/26: 16.7
2025/26
Eligible for free school meals
19.8%
▼ 8pp England 2025/26: 27.3%
school census 15/01/2026
Teacher turnover
8.6%
▼ 6pp England 2024/25: 14.2% (secondary schools)
2024/25
Capacity
63%
759 / 1,200 pupils
register figure (GIAS)
Ofsted
No overall grade
inspected Apr 2025

Academy trust

iGet Information about Schools (DfE), extract of 24 Oct 2026, and Governance Register.

Insignis Academy Trust

The Kingsbrook School is one of 6 schools run by Insignis Academy Trust.

Type of school
Free schools
Ages
11 to 18

Open the trust on Governance Register to see its trustees and board →

Schools in the trust

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SchoolPhaseLocal authorityPupilsGovernors on Governance RegisterLatest Ofsted in our data (as at 30 Sep 2026)
Ashmead Combined SchoolPrimaryBuckinghamshire7079Good 2020This inspection was of the previous school, before it became an academy.
Princes Risborough SchoolSecondaryBuckinghamshire1,08312Good 2022
Sir Henry Floyd Grammar SchoolSecondaryBuckinghamshire1,35310Outstanding 2024
Sir William Ramsay SchoolSecondaryBuckinghamshire98410Inadequate 2022This inspection was of the school this one replaced.
The Kingsbrook School (this school)SecondaryBuckinghamshire75911Key judgements 2025Outstanding in 1 key judgement, Good in 3; safeguarding effective
The Mandeville SchoolSecondaryBuckinghamshire96610Key judgements 2024Good in 1 key judgement, Requires improvement in 2, Inadequate in 1; sixth form provision Requires improvement; safeguarding effective
6 schools5,852

Schools linked to the trust in the Governance Register school data (Get Information about Schools, extract of 24 Oct 2026). Pupils are on-roll counts from the register. Ofsted: latest inspection in the Ofsted management information (as at 30 September 2026); "No overall grade" means inspected since September 2024 without a one-word grade; what the inspection found is shown beneath, and the school's Ofsted card has the full table.

What this means

Funding
An academy is funded directly by the Department for Education, through its trust, rather than through the local council.
Admissions
The trust is the admissions authority and sets the admissions policy. Applications are usually still coordinated by the local council.
Governance
The trust board is legally accountable for the school. It often delegates some oversight to a local governing body.

General explanation of how academy trusts work in England, not a statement about this trust. See GOV.UK Academy trust governance guide.