| 26 | Devonport High School for Boys | 82.1 compositeOfsted25.0 Att825.7 EM5+31.5 | Grammar · Day · 6th | Plymouth, South West | Good 2023-10-17 |
| 27 | Ilford County High School | 81.7 compositeOfsted21.2 Att828.0 EM5+32.4 | Grammar · Day · 6th | Ilford, London | Good 2021-09-21×0.85 |
| 28 | Lancaster Royal Grammar School | 81.6 compositeOfsted21.2 Att827.4 EM5+32.9 | Grammar · Boarding · 6th | Lancaster, North West | Good 2021-10-19×0.85 |
| 29 | Watford Grammar School for Boys | 81.6 compositeOfsted28.3 Att825.5 EM5+27.8 | Academy · Day · 6th | Watford, East of England | Outstanding 2021-10-13×0.85 |
| 30 | Beths Grammar School | 80.4 compositeOfsted21.2 Att826.5 EM5+32.6 | Grammar · Day · 6th | Bexley, London | Good 2022-05-04×0.85 |
| 31 | The Norton Knatchbull School | 80.2 compositeOfsted25.0 Att824.9 EM5+30.3 | Grammar · Day · 6th | Ashford, South East | Good 2023-12-13 |
| 32 | The Cardinal Vaughan Memorial RC School | 80.0 compositeOfsted28.3 Att824.9 EM5+26.7 | Academy · Day · 6th | London, London | Outstanding 2021-11-16×0.85 |
| 33 | The King's School, Grantham | 79.8 compositeOfsted21.2 Att826.9 EM5+31.6 | Grammar · Day · 6th | Grantham, East Midlands | Good 2022-12-13×0.85 |
| 34 | Haberdashers' Adams | 79.4 compositeOfsted21.2 Att826.6 EM5+31.5 | Grammar · Boarding · 6th | Newport, West Midlands | Good 2022-05-10×0.85 |
| 35 | Gunnersbury Catholic School | 78.8 compositeOfsted28.3 Att823.5 EM5+26.9 | State · Day · 6th | Brentford, London | Outstanding 2023-01-17×0.85 |
| 36 | The Skinners' School | 78.6 compositeOfsted21.2 Att826.2 EM5+31.1 | Grammar · Day · 6th | Tunbridge Wells, South East | Good 2021-11-16×0.85 |
| 37 | Torquay Boys' Grammar School | 78.6 compositeOfsted21.2 Att826.2 EM5+31.1 | Grammar · Day · 6th | Torquay, South West | Good 2021-09-22×0.85 |
| 38 | Saint Ambrose College | 78.4 compositeOfsted17.5 Att828.2 EM5+32.7 | Grammar · Day · 6th | Altrincham, North West | Good 2020-02-18×0.7 |
| 39 | The Royal Grammar School, High Wycombe | 77.4 compositeOfsted17.5 Att827.4 EM5+32.5 | Grammar · Boarding · 6th | High Wycombe, South East | Good 2019-10-09×0.7 |
| 40 | The London Oratory School | 77.3 compositeOfsted28.3 Att823.1 EM5+25.9 | Academy · Day · 6th | London, London | Outstanding 2022-09-13×0.85 |
| 41 | Glyn School | 76.2 compositeOfsted33.3 Att820.7 EM5+22.2 | Academy · Day · 6th | Epsom, South East | Outstanding 2023-09-12 |
| 42 | Wirral Grammar School for Boys | 75.8 compositeOfsted21.2 Att824.2 EM5+30.3 | Grammar · Day · 6th | Wirral, North West | Good 2022-11-08×0.85 |
| 43 | Eden Boys' Leadership Academy, Birmingham East | 75.8 compositeOfsted28.3 Att822.5 EM5+24.9 | Free School · Day | Birmingham, West Midlands | Outstanding 2023-01-18×0.85 |
| 44 | Richard Challoner School | 75.2 compositeOfsted28.3 Att822.0 EM5+24.9 | Academy · Day · 6th | New Malden, London | Outstanding 2022-11-22×0.85 |
| 45 | St Olave's and St Saviour's Grammar School | 75.2 composite | Grammar · Day · 6th | Orpington, London | — 2024-11-05 |
| 46 | Ermysted's Grammar School | 75.1 compositeOfsted21.2 Att824.9 EM5+28.9 | Grammar · Day · 6th | Skipton, Yorkshire and the Humber | Good 2022-09-28×0.85 |
| 47 | Carre's Grammar School | 72.6 compositeOfsted25.0 Att821.5 EM5+26.1 | Grammar · Day · 6th | Sleaford, East Midlands | Good 2023-12-05 |
| 48 | Wallington County Grammar School | 72.4 composite | Grammar · Day · 6th | Wallington, London | — 2022-11-16 |
| 49 | The Judd School | 72.3 composite | Grammar · Day · 6th | Tonbridge, South East | — 2025-03-11 |
| 50 | Harris Boys' Academy East Dulwich | 72.3 compositeOfsted33.3 Att820.6 EM5+18.4 | Academy · Day · 6th | London, London | Outstanding 2023-11-28 |