| 26 | Beechwood Park School | 478 pupils | Independent · Boarding | St Albans, East of England | — ISI · Good |
| 27 | Cumnor House School | 425 pupils | Independent · Boarding | Haywards Heath, South East | — ISI · Good |
| 28 | Old Buckenham Hall School | 190 pupils | Independent · Boarding | Ipswich, East of England | — ISI · Good |
| 29 | Brambletye School | 309 pupils | Independent · Boarding | East Grinstead, South East | — ISI · Good |
| 30 | Northbourne Park School | 171 pupils | Independent · Boarding | DEAL, South East | — ISI · Good |
| 31 | The Yarlet School | 134 pupils | Independent · Boarding | Stafford, West Midlands | — ISI · Good |
| 32 | Eaton House the Manor School | 673 pupils | Independent · Day | London, London | — ISI · Good |
| 33 | Newton Preparatory School | 636 pupils | Independent · Day | London, London | — ISI · Good |
| 34 | Spratton Hall School | 374 pupils | Independent · Day | Unknown, East Midlands | — ISI · Good |
| 35 | Wellesley Prep School | 289 pupils | Independent · Day | Hook, South East | — ISI · Good |
| 36 | Ravenscourt Park Preparatory School | 418 pupils | Independent · Day | London, London | — ISI · Good |
| 37 | Sherborne House School | 295 pupils | Independent · Day | Eastleigh, South East | — ISI · Good |
| 38 | Crackley Hall School | 275 pupils | Independent · Day | Kenilworth, West Midlands | — ISI · Good |
| 39 | Highfield and Brookham School | 448 pupils | Independent · Boarding | Unknown, South East | — ISI · Unsatisfactory |
| 40 | Kitebrook Preparatory School | 315 pupils | Independent · Boarding | Moreton-in-Marsh, South East | — |
| 41 | St Hugh's School | 174 pupils | Independent · Boarding | Woodhall Spa, East Midlands | — |
| 42 | Thomas's Fulham | 420 pupils | Independent · Day | London, London | — ISI · Good |
| 43 | The Elms School | 155 pupils | Independent · Boarding | Malvern, West Midlands | — ISI · Good |
| 44 | Beaudesert Park School | 332 pupils | Independent · Boarding | Stroud, South West | — ISI · Good |
| 45 | Berkhamsted Prep and Pre-Prep School | 555 pupils | Independent · Day | Berkhamsted, East of England | — |
| 46 | King's School | 281 pupils | Independent · Day | Plymouth, South West | — |
| 47 | Hatherop Castle School | 280 pupils | Independent · Boarding | Gloucestershire, South West | — ISI · Good |
| 48 | Millfield Preparatory School | 471 pupils | Independent · Boarding | Glastonbury, South West | — ISI · Excellent |
| 49 | Hazlegrove Preparatory School | 377 pupils | Independent · Boarding | Yeovil, South West | — ISI · Excellent |
| 50 | West Hill Park School | 201 pupils | Independent · Boarding | Fareham, South East | — ISI · Excellent |