SF School Facts UK

Multi-academy trust

The Sigma Trust

12 schools across 1 local authority in East of England, teaching 11,523 pupils.

The trust at a glance

Schools
12
Primary
4
Secondary
8
Pupils
11,523
Average Attainment 8
42.7

across its secondaries

Average KS2 expected standard
41%

across its primaries

Across the 11 schools in the trust with comparable results, the average sits below the middle of schools with a similar intake. That is a fairer read on the trust than its raw results, which mostly reflect the areas it operates in.

-0.21confidence interval -0.28 to -0.15

Pupil-weighted Progress 8 is -0.21 (interval -0.28 to -0.15). The interval sits entirely below zero, so this looks like a real shortfall rather than noise. Weighted by 1,864 pupils across 8 schools with a published Progress 8 score (minimum 2).

Ofsted across the trust

Good7
Requires improvement1
No overall grade4

8 of the trust's 12 schools carry a historic one-word grade; 4 do not. Current report cards grade separate aspects and cannot be reduced to a replacement overall score. A trust that has taken on struggling schools may carry their old grades for years. What changed.

Ofsted outcomes across this trust are mixed: 7 Good, 1 Requires improvement; 4 have no overall grade. Historic overall grades and current report cards are different systems and are not averaged.

Schools in The Sigma Trust

SchoolAreaOfstedAttainment 8Progress 8Compare
Alton Park Junior SchoolAcademy converter Clacton-on-Sea Requires improvement 2024
Holland Park Primary SchoolAcademy converter Clacton-on-Sea Good 2024
Monkwick Infant and Nursery SchoolAcademy converter Colchester No overall grade
Monkwick Junior SchoolAcademy sponsor led Colchester Good 2022
Clacton County High SchoolAcademy converter Clacton-on-Sea No overall grade 38.6 -0.35-0.51 to -0.18
Colne Community SchoolAcademy converter Colchester Good 2023 43 -0.08-0.26 to 0.09 · not a win
Harwich and Dovercourt High SchoolAcademy sponsor led Harwich Report card 2026 37.6 -0.67-0.87 to -0.47
Paxman AcademyFree schools Colchester Good 2024 41.3 -0.17-0.38 to 0.04 · not a win
Philip Morant School and CollegeAcademy converter Colchester Good 2023 44.5 -0.13-0.31 to 0.05 · not a win
St Helena SchoolAcademy converter Colchester Good 2024 46 -0.31-0.52 to -0.10
The Stanway SchoolAcademy converter Colchester Good 2023 48.2 0.07-0.10 to 0.23 · not a win
The Thomas Lord Audley SchoolAcademy converter Colchester No overall grade 42.3 -0.13-0.35 to 0.09 · not a win

Identity snapshot: 23 August 2026. School membership, pupil totals and trust names come from the dated Get Information About Schools importer build. Results and inspection fields retain their own published periods and should not be treated as if they were measured on that date.