| 26 | Ravenscourt Park Preparatory School | 418 pupils | Independent · Day | London, London | — ISI · Good |
| 27 | Sherborne House School | 295 pupils | Independent · Day | Eastleigh, South East | — ISI · Good |
| 28 | Crackley Hall School | 275 pupils | Independent · Day | Kenilworth, West Midlands | — ISI · Good |
| 29 | Wetherby School | 324 pupils | Independent · Day | London, London | — ISI · Good |
| 30 | Thomas's Fulham | 420 pupils | Independent · Day | London, London | — ISI · Good |
| 31 | St Anthony's School for Boys | 266 pupils | Independent · Day | Unknown, London | — |
| 32 | Berkhamsted Prep and Pre-Prep School | 555 pupils | Independent · Day | Berkhamsted, East of England | — |
| 33 | King's School | 281 pupils | Independent · Day | Plymouth, South West | — |
| 34 | The Beacon School | 507 pupils | Independent · Day | Amersham, South East | — ISI · Good |
| 35 | Sussex House School | 187 pupils | Independent · Day | London, London | — ISI · Good |
| 36 | Alleyns Regents Park Prep | 320 pupils | Independent · Day | London, London | — ISI · Excellent |
| 37 | Hereward House School | 162 pupils | Independent · Day | London, London | — ISI · Excellent |
| 38 | Milton Keynes Preparatory School | 400 pupils | Independent · Day | Milton Keynes, South East | — ISI · Excellent |
| 39 | Woodford Green Preparatory School | 368 pupils | Independent · Day | Woodford Green, London | — ISI · Excellent |
| 40 | Finton House School | 348 pupils | Independent · Day | Unknown, London | — ISI · Excellent |
| 41 | Gayhurst School | 340 pupils | Independent · Day | Gerrards Cross, South East | — ISI · Excellent |
| 42 | Greenfield School | 319 pupils | Independent · Day | Woking, South East | — ISI · Excellent |
| 43 | West House School | 311 pupils | Independent · Day | Birmingham, West Midlands | — ISI · Excellent |
| 44 | Charterhouse Square School | 298 pupils | Independent · Day | London, London | — ISI · Excellent |
| 45 | Chandlings Prep | 297 pupils | Independent · Day | Oxford, South East | — ISI · Excellent |
| 46 | Barfield Prep School | 284 pupils | Independent · Day | Guildford, South East | — ISI · Excellent |
| 47 | Altrincham Preparatory School | 263 pupils | Independent · Day | Altrincham, North West | — ISI · Excellent |
| 48 | Alleyn Court Preparatory School | 244 pupils | Independent · Day | Southend-on-Sea, East of England | — ISI · Excellent |
| 49 | Kew Green Preparatory School | 240 pupils | Independent · Day | Richmond, London | — ISI · Excellent |
| 50 | The Gleddings School | 227 pupils | Independent · Day | Halifax, Yorkshire and the Humber | — ISI · Excellent |