| 51 | Pocklington School | 730 pupils | Independent · Boarding · 6th | York, Yorkshire and the Humber | — ISI · Good |
| 52 | Ratcliffe College | 916 pupils | Independent · Boarding · 6th | Unknown, East Midlands | — ISI · Good |
| 53 | Durham Cathedral Schools Foundation | 740 pupils | Independent · Boarding · 6th | Unknown, North East | — ISI · Good |
| 54 | Rossall School | 829 pupils | Independent · Boarding · 6th | Fleetwood, North West | — ISI · Good |
| 55 | St Edmund's College | 791 pupils | Independent · Boarding · 6th | Ware, East of England | — |
| 56 | Millfield School | 1,283 pupils | Independent · Boarding · 6th | Street, South West | — ISI · Good |
| 57 | Ellesmere College | 518 pupils | Independent · Boarding · 6th | Ellesmere, West Midlands | — ISI · Good |
| 58 | Ackworth School | 428 pupils | Independent · Boarding · 6th | West Yorkshire, Yorkshire and the Humber | — ISI · Good |
| 59 | Epsom College | 1,143 pupils | Independent · Boarding · 6th | Epsom, South East | — ISI · Good |
| 60 | Gresham's School | 894 pupils | Independent · Boarding · 6th | Unknown, East of England | — |
| 61 | Truro School | 808 pupils | Independent · Boarding · 6th | Unknown, South West | — ISI · Good |
| 62 | Seaford College | 962 pupils | Independent · Boarding · 6th | Unknown, South East | — ISI · Good |
| 63 | Royal Russell School | 1,263 pupils | Independent · Boarding · 6th | Croydon, London | — ISI · Good |
| 64 | Monkton Combe School | 644 pupils | Independent · Boarding · 6th | Bath, South West | — ISI · Good |
| 65 | Ashford School | 993 pupils | Independent · Boarding · 6th | Ashford, South East | — ISI · Good |
| 66 | Culford School | 895 pupils | Independent · Boarding · 6th | Bury St. Edmunds, East of England | — ISI · Good |
| 67 | St Margaret's School | 806 pupils | Independent · Boarding · 6th | Bushey, East of England | — |
| 68 | Frensham Heights School | 510 pupils | Independent · Boarding · 6th | Farnham, South East | — ISI · Good |
| 69 | Worth School | 655 pupils | Independent · Boarding · 6th | Crawley, South East | — ISI · Good |
| 70 | Stamford Endowed Schools | 1,120 pupils | Independent · Boarding · 6th | Lincolnshire, East Midlands | — |
| 71 | Westonbirt School | 794 pupils | Independent · Boarding · 6th | Tetbury, South West | — ISI · Good |
| 72 | Worksop College | 751 pupils | Independent · Boarding · 6th | Worksop, East Midlands | — ISI · Good |
| 73 | Royal Hospital School | 545 pupils | Independent · Boarding · 6th | Ipswich, East of England | — ISI · Good |
| 74 | Berkhamsted School | 1,431 pupils | Independent · Boarding · 6th | Berkhamsted, East of England | — ISI · Good |
| 75 | Bromsgrove School | 2,058 pupils | Independent · Boarding · 6th | Bromsgrove, West Midlands | — |