| 1 | Queen Elizabeth's School, Barnet | 76.3 compositeOfsted15.3 AAB%15.1 VA10.9 Att817.1 EM5+17.8 | Grammar · Day · 6th | Barnet, London | Outstanding 2022-05-17×0.85 |
| 2 | Wilson's School | 74.9 compositeOfsted15.3 AAB%14.3 VA10.0 Att817.4 EM5+18.0 | Grammar · Day · 6th | Wallington, London | Outstanding 2022-09-28×0.85 |
| 3 | Reading School | 74.7 compositeOfsted18.0 AAB%11.3 VA10.8 Att816.6 EM5+18.0 | Grammar · Boarding · 6th | Reading, South East | Outstanding 2023-11-21 |
| 4 | King Edward VI School | 71.8 compositeOfsted15.3 AAB%9.7 VA12.2 Att816.7 EM5+18.0 | Grammar · Day · 6th | Stratford-upon-Avon, West Midlands | Outstanding 2021-11-30×0.85 |
| 5 | King Edward VI Grammar School, Chelmsford | 71.4 compositeOfsted15.3 AAB%12.3 VA9.1 Att816.7 EM5+18.0 | Grammar · Day · 6th | Chelmsford, East of England | Outstanding 2021-12-08×0.85 |
| 6 | The London Oratory School | 70.9 compositeOfsted10.5 AAB%3.6 VA7.1 Att88.6 EM5+9.6 RWM12.4 Read9.6 Maths9.6 | Academy · Day · 6th | London, London | Outstanding 2022-09-13×0.85 |
| 7 | King Edward VI Camp Hill School for Boys | 70.1 compositeOfsted18.0 AAB%11.1 VA8.5 Att815.1 EM5+17.4 | Grammar · Day · 6th | Birmingham, West Midlands | Outstanding 2023-11-22 |
| 8 | Bishop Vesey's Grammar School | 68.5 compositeOfsted18.0 AAB%8.1 VA9.4 Att815.4 EM5+17.5 | Grammar · Day · 6th | Sutton Coldfield, West Midlands | Outstanding 2024-04-30 |
| 9 | Altrincham Grammar School for Boys | 68.3 compositeOfsted15.3 AAB%9.8 VA9.7 Att815.7 EM5+17.7 | Grammar · Day · 6th | Altrincham, North West | Outstanding 2022-09-27×0.85 |
| 10 | Westcliff High School for Boys Academy | 68.1 compositeOfsted18.0 AAB%7.6 VA9.4 Att815.5 EM5+17.6 | Grammar · Day · 6th | Westcliff-on-Sea, East of England | Outstanding 2023-11-21 |
| 11 | Tiffin School | 67.8 compositeOfsted11.5 AAB%12.0 VA10.8 Att815.8 EM5+17.7 | Grammar · Day · 6th | Kingston upon Thames, London | Good 2022-05-24×0.85 |
| 12 | Dartford Grammar School | 67.4 compositeOfsted17.6 VA10.8 Att818.4 EM5+20.5 | Grammar · Day · 6th | Dartford, South East | Outstanding 2022-12-06×0.85 |
| 13 | St Olave's and St Saviour's Grammar School | 67.4 compositeAAB%16.3 VA11.1 Att819.3 EM5+20.8 | Grammar · Day · 6th | Orpington, London | — 2024-11-05 |
| 14 | Sutton Grammar School | 66.9 compositeOfsted11.5 AAB%11.1 VA10.4 Att816.1 EM5+17.9 | Grammar · Day · 6th | Sutton, London | Good 2022-06-22×0.85 |
| 15 | Dr Challoner's Grammar School | 65.7 compositeOfsted12.6 AAB%10.4 VA10.6 Att814.8 EM5+17.3 | Grammar · Day · 6th | Amersham, South East | Outstanding 2019-11-05×0.7 |
| 16 | Bishop Wordsworth's Church of England Grammar School | 65.3 compositeOfsted15.3 AAB%5.9 VA12.1 Att814.6 EM5+17.4 | Grammar · Day · 6th | Salisbury, South West | Outstanding 2022-11-15×0.85 |
| 17 | Lawrence Sheriff School | 64.5 compositeOfsted15.3 AAB%5.1 VA11.8 Att815.0 EM5+17.3 | Grammar · Day · 6th | Rugby, West Midlands | Outstanding 2022-03-29×0.85 |
| 18 | Bournemouth School | 64.3 compositeOfsted18.0 AAB%5.1 VA9.1 Att814.8 EM5+17.3 | Grammar · Day · 6th | Bournemouth, South West | Outstanding 2024-02-27 |
| 19 | Colchester Royal Grammar School | 64.1 compositeOfsted3.1 AAB%14.0 VA12.5 Att816.4 EM5+18.0 | Grammar · Boarding · 6th | Colchester, East of England | Inadequate 2021-05-11×0.7 |
| 20 | Tauheedul Islam Boys' High School | 63.6 compositeOfsted18.0 AAB%4.8 VA13.7 Att812.5 EM5+14.6 | Free School · Day · 6th | Blackburn, North West | Outstanding 2024-03-05 |
| 21 | Southend High School for Boys | 63.6 compositeOfsted18.0 AAB%4.8 VA8.6 Att814.8 EM5+17.5 | Grammar · Day · 6th | Southend-on-Sea, East of England | Outstanding 2024-06-12 |
| 22 | Aylesbury Grammar School | 63.5 compositeOfsted15.3 AAB%6.4 VA9.7 Att814.9 EM5+17.1 | Grammar · Day · 6th | Aylesbury, South East | Outstanding 2022-11-02×0.85 |
| 23 | John Hampden Grammar School | 62.9 compositeOfsted15.3 AAB%5.7 VA9.9 Att814.5 EM5+17.6 | Grammar · Day · 6th | High Wycombe, South East | Outstanding 2022-09-14×0.85 |
| 24 | The Judd School | 62.5 compositeAAB%12.9 VA11.0 Att818.1 EM5+20.4 | Grammar · Day · 6th | Tonbridge, South East | — 2025-03-11 |
| 25 | Queen Mary's Grammar School | 62.4 compositeOfsted15.3 AAB%6.5 VA8.2 Att814.8 EM5+17.5 | Grammar · Day · 6th | Walsall, West Midlands | Outstanding 2023-03-28×0.85 |