| 1 | Upton Court Grammar School Period 202425 | 7.81 | Grammar · Day · 6th | Slough, South East | Outstanding |
| 2 | St Bernard's Catholic Grammar School Period 202425 | 7.35 | Grammar · Day · 6th | Slough, South East | Outstanding |
| 3 | Herschel Grammar School Period 202425 | 7.25 | Grammar · Day · 6th | Slough, South East | Outstanding |
| 4 | Chesham Grammar School Period 202425 | 7.25 | Grammar · Day · 6th | Chesham, South East | — |
| 5 | Langley Grammar School Period 202425 | 7.13 | Grammar · Day · 6th | Langley, South East | Outstanding |
| 6 | Sir William Borlase's Grammar School Period 202425 | 6.87 | Grammar · Day · 6th | Marlow, South East | Outstanding |
| 7 | Sir Henry Floyd Grammar School Period 202425 | 6.74 | Grammar · Day · 6th | Aylesbury, South East | Outstanding |
| 8 | Royal Latin School Period 202425 | 6.67 | Grammar · Day · 6th | Buckingham, South East | Good |
| 9 | Cranbrook School Period 202425 | 6.58 | Grammar · Boarding · 6th | Cranbrook, South East | Good |
| 10 | Barton Court Grammar School Period 202425 | 6.37 | Grammar · Day · 6th | Canterbury, South East | Good |
| 11 | Salesian School, Chertsey Period 202425 | 6.19 | Academy · Day · 6th | Chertsey, South East | — |
| 12 | Dane Court Grammar School Period 202425 | 6.16 | Grammar · Day · 6th | Broadstairs, South East | Good |
| 13 | Burnham Grammar School Period 202425 | 6.16 | Grammar · Day · 6th | Slough, South East | — |
| 14 | St Andrew's Catholic School Period 202425 | 6.12 | Academy · Day · 6th | Leatherhead, South East | Outstanding |
| 15 | Chatham & Clarendon Grammar School Period 202425 | 6.09 | Grammar · Day · 6th | Ramsgate, South East | — |
| 16 | Queen Elizabeth's Grammar School Period 202425 | 6.07 | Grammar · Day · 6th | Faversham, South East | Good |
| 17 | Gordon's School Period 202425 | 6.04 | Academy · Boarding · 6th | Woking, South East | — |
| 18 | Rainham Mark Grammar School Period 202425 | 6.00 | Grammar · Day · 6th | Gillingham, South East | Good |
| 19 | Sir Roger Manwood's School Period 202425 | 5.91 | Grammar · Day · 6th | Sandwich, South East | Good |
| 20 | St Paul's Catholic College Period 202425 | 5.75 | Academy · Day · 6th | Sunbury-on-Thames, South East | — |
| 21 | Hinchley Wood School Period 202425 | 5.75 | Academy · Day · 6th | Esher, South East | Outstanding |
| 22 | Gillotts School Period 202425 | 5.74 | Academy · Day | Henley-on-Thames, South East | Outstanding |
| 23 | Bishop Challoner Catholic Secondary School Period 202425 | 5.65 | State · Day | Basingstoke, South East | — |
| 24 | Weydon School Period 202425 | 5.56 | Academy · Day | Farnham, South East | Good |
| 25 | Thornden School Period 202425 | 5.54 | Academy · Day | Eastleigh, South East | Good |