| 1 | St Paul's Girls' School Period 202122 | 56.7 | Independent · Day · 6th | London, London | — |
| 2 | Westminster School Period 202122 | 56.5 | Independent · Boarding · 6th | London, London | — |
| 3 | King Edward VI High School for Girls Period 202122 | 55.4 | Independent · Day · 6th | Birmingham, West Midlands | — |
| 4 | Guildford High School Period 202122 | 55.4 | Independent · Day · 6th | Guildford, South East | — |
| 5 | Wycombe Abbey Period 202122 | 55.3 | Independent · Boarding · 6th | High Wycombe, South East | — |
| 6 | The Godolphin and Latymer School Period 202122 | 55.2 | Independent · Day · 6th | London, London | — |
| 7 | Brighton College Period 202122 | 55.0 | Independent · Boarding · 6th | Brighton, South East | — |
| 8 | City of London School Period 202122 | 54.8 | Independent · Day · 6th | London, London | — |
| 9 | North London Collegiate School Period 202425 | 54.6 | Independent · Day · 6th | Middlesex, London | — |
| 10 | Withington Girls' School Period 202122 | 54.1 | Independent · Day · 6th | Manchester, North West | — |
| 11 | Lady Eleanor Holles School Period 202122 | 54.1 | Independent · Day · 6th | Hampton, London | — |
| 12 | The National Mathematics and Science College Period 202425 | 53.9 | Independent · Boarding · 6th | Unknown, West Midlands | — |
| 13 | Haberdashers' Girls' School Period 202122 | 53.6 | Independent · Day · 6th | Borehamwood, East of England | — |
| 14 | City of London School for Girls Period 202122 | 53.5 | Independent · Day · 6th | London, London | — |
| 15 | Eton College Period 202122 | 53.5 | Independent · Boarding · 6th | Windsor, South East | — |
| 16 | Alleyn's School Period 202122 | 53.3 | Independent · Day · 6th | London, London | — |
| 17 | Haberdashers' Boys' School Period 202122 | 53.3 | Independent · Day · 6th | Unknown, East of England | — |
| 18 | The Perse School Period 202122 | 53.1 | Independent · Day · 6th | Unknown, East of England | — |
| 19 | Highgate School Period 202122 | 53.1 | Independent · Day · 6th | Unknown, London | — |
| 20 | Oxford International College Period 202122 | 52.9 | Independent · Boarding · 6th | Unknown, South East | Inadequate |
| 21 | Tonbridge School Period 202122 | 52.9 | Independent · Boarding · 6th | Tonbridge, South East | — |
| 22 | Hampton School Period 202122 | 52.9 | Independent · Day · 6th | Hampton, London | — |
| 23 | Dulwich College Period 202122 | 52.9 | Independent · Boarding · 6th | London, London | — |
| 24 | Concord College Period 202425 | 52.7 | Independent · Boarding · 6th | Shrewsbury, West Midlands | — |
| 25 | South Hampstead High School GDST Period 202122 | 52.6 | Independent · Day · 6th | London, London | — |