| 301 | Windermere School | 256 pupils | Independent · Boarding · 6th | The Lake District, North West | — ISI · Good |
| 302 | The Worthgate School | 310 pupils | Independent · Boarding · 6th | Canterbury, South East | — ISI · Good |
| 303 | King's Bruton | 350 pupils | Independent · Boarding · 6th | Bruton, South West | — |
| 304 | Hulme Hall Grammar School | 216 pupils | Independent · Day | Stockport, North West | — ISI · Good |
| 305 | Oneschool Global Uk Salisbury Campus | 193 pupils | Independent · Day · 6th | Salisbury, South West | — ISI · Good |
| 306 | Shoreham College | 352 pupils | Independent · Day | Unknown, South East | — ISI · Good |
| 307 | Elmhurst Ballet School | 191 pupils | Independent · Boarding · 6th | Birmingham, West Midlands | — ISI · Good |
| 308 | Hydesville Tower School | 297 pupils | Independent · Day | Unknown, West Midlands | — ISI · Good |
| 309 | Mander Portman Woodward | 159 pupils | Independent · Day · 6th | Cambridge, East of England | — |
| 310 | St George's School Edgbaston | 376 pupils | Independent · Day · 6th | West Midlands, West Midlands | — |
| 311 | Tower College | 303 pupils | Independent · Day | Prescot, North West | — ISI · Good |
| 312 | Long Close School | 190 pupils | Independent · Day | Slough, South East | — ISI · Good |
| 313 | Akeley Wood Senior School | 442 pupils | Independent · Day · 6th | Unknown, South East | — ISI · Sound |
| 314 | Sancton Wood School | 391 pupils | Independent · Day | Unknown, East of England | — ISI · Good |
| 315 | Oakhill School | 299 pupils | Independent · Day | Clitheroe, North West | — ISI · Good |
| 316 | Boundary Oak School | 484 pupils | Independent · Boarding | Fareham, South East | — ISI · Good |
| 317 | Milton Abbey School | 218 pupils | Independent · Boarding · 6th | Blandford Forum, South West | — ISI · Good |
| 318 | Normanhurst School | 246 pupils | Independent · Day | London, London | — ISI · Good |
| 319 | Lucton School | 258 pupils | Independent · Boarding · 6th | Leominster, West Midlands | — ISI · Good |
| 320 | Al Mumin Primary and Secondary School | 241 pupils | Independent · Day · 6th | Bradford, Yorkshire and the Humber | — ISI · Good |
| 321 | Hipperholme Grammar School | 288 pupils | Independent · Day | Unknown, Yorkshire and the Humber | — ISI · Good |
| 322 | Collingham | 142 pupils | Independent · Day · 6th | London, London | — ISI · Good |
| 323 | Teesside High School | 272 pupils | Independent · Day · 6th | Unknown, North East | — ISI · Good |
| 324 | Holmwood House School | 392 pupils | Independent · Boarding | Colchester, East of England | — ISI · Excellent |
| 325 | Bredon School | 217 pupils | Independent · Boarding · 6th | Tewkesbury, West Midlands | — ISI · Good |