| 1 | Cheltenham Ladies' College | 66.8 compositeOfsted13.5 AAB%10.8 VA10.0 Att815.6 EM5+16.9 | Independent · Boarding · 6th | Cheltenham, South West | — |
| 2 | The Maynard School | 59.1 compositeOfsted13.5 AAB%8.2 VA10.0 Att812.1 EM5+15.3 | Independent · Day · 6th | Exeter, South West | — |
| 3 | Talbot Heath School | 54.2 compositeOfsted13.5 AAB%4.2 VA10.2 Att812.3 EM5+14.0 | Independent · Boarding · 6th | Bournemouth, South West | — |
| 4 | West Buckland School | 52.6 compositeOfsted13.5 AAB%5.1 VA10.7 Att810.8 EM5+12.4 | Independent · Boarding · 6th | Barnstaple, South West | — |
| 5 | Oneschool Global Uk Salisbury Campus | 52.5 compositeOfsted15.6 VA13.6 Att811.7 EM5+11.5 | Independent · Day · 6th | Salisbury, South West | — |
| 6 | Shebbear College | 45.0 compositeOfsted13.5 AAB%3.2 VA10.6 Att89.2 EM5+8.5 | Independent · Boarding · 6th | Beaworthy, South West | — |
| 7 | Truro High School | 43.4 compositeOfsted18.0 AAB%4.9 VA11.2 Att89.3 EM5+0.0 | Independent · Boarding · 6th | Truro, South West | — |
| 8 | Oneschool Global Uk Plymouth Campus | 43.3 compositeOfsted15.6 VA9.1 Att811.1 EM5+7.6 | Independent · Day · 6th | Plymouth, South West | — |
| 9 | Rendcomb College | 42.7 compositeOfsted13.5 AAB%4.3 VA10.6 Att88.1 EM5+6.1 | Independent · Boarding · 6th | Cirencester, South West | — |
| 10 | Oneschool Global Uk - Tewkesbury Campus | 40.9 composite | Independent · Day · 6th | Tewkesbury, South West | — |
| 11 | Queen's College | 40.8 compositeAAB%3.5 VA10.6 Att813.2 EM5+13.5 | Independent · Boarding · 6th | Taunton, South West | — |
| 12 | Collegiate School | 40.1 compositeOfsted13.5 AAB%5.1 VA11.2 Att810.3 EM5+0.0 | Independent · Day · 6th | Unknown, South West | — |
| 13 | Cheltenham College | 40.0 compositeOfsted18.0 AAB%6.2 VA11.5 Att84.3 EM5+0.0 | Independent · Boarding · 6th | Cheltenham, South West | — |
| 14 | Totnes Independent School | 39.7 compositeOfsted18.5 Att812.0 EM5+9.1 | Independent · Day | Totnes, South West | — |
| 15 | Bristol Grammar School | 39.2 compositeOfsted18.0 AAB%7.6 VA10.7 Att83.0 EM5+0.0 | Independent · Day · 6th | Bristol, South West | — |
| 16 | Stover School | 38.8 compositeOfsted13.5 AAB%1.5 VA10.6 Att89.0 EM5+4.2 | Independent · Boarding · 6th | Newton Abbot, South West | — |
| 17 | Queen Elizabeth's Hospital | 38.0 compositeOfsted13.5 AAB%6.7 VA9.6 Att88.2 EM5+0.0 | Independent · Day · 6th | Bristol, South West | — |
| 18 | Truro School | 37.9 compositeOfsted13.5 AAB%6.0 VA11.6 Att86.8 EM5+0.0 | Independent · Boarding · 6th | Unknown, South West | — |
| 19 | Redmaids' High School | 37.6 compositeOfsted13.5 AAB%8.5 VA9.8 Att85.8 EM5+0.0 | Independent · Day · 6th | Bristol, South West | — |
| 20 | Cleve House School | 37.5 composite | Independent · Day | Bristol, South West | — |
| 21 | Polwhele House School | 37.5 composite | Independent · Day | Truro, South West | — |
| 22 | Maranatha Christian School | 37.5 composite | Independent · Day · 6th | Unknown, South West | — |
| 23 | The Acorn School | 37.5 composite | Independent · Day · 6th | Stroud, South West | Outstanding |
| 24 | Wells Cathedral School | 37.0 compositeOfsted18.0 AAB%3.0 VA10.0 Att86.0 EM5+0.0 | Independent · Boarding · 6th | Wells, South West | — |
| 25 | Canford School | 37.0 compositeOfsted13.5 AAB%7.7 VA10.4 Att85.4 EM5+0.0 | Independent · Boarding · 6th | Wimborne, South West | — |