| 76 | Alleyn's School | 1,450 pupils | Independent · Day · 6th | London, London | — |
| 77 | The Stephen Perse Foundation | 1,624 pupils | Independent · Boarding · 6th | Unknown, East of England | — ISI · Good |
| 78 | The Leys School | 564 pupils | Independent · Boarding · 6th | Cambridge, East of England | — ISI · Good |
| 79 | St Swithuns | 715 pupils | Independent · Boarding · 6th | Unknown, South East | — |
| 80 | Heathfield School | 185 pupils | Independent · Boarding · 6th | Ascot, South East | — ISI · Good |
| 81 | Kingston Grammar School | 914 pupils | Independent · Day · 6th | Kingston upon Thames, London | — ISI · Good |
| 82 | Bryanston School | 778 pupils | Independent · Boarding · 6th | Blandford Forum, South West | — ISI · Good |
| 83 | Mill Hill School Foundation | 1,767 pupils | Independent · Boarding · 6th | London, London | — |
| 84 | Eastbourne College | 622 pupils | Independent · Boarding · 6th | Eastbourne, South East | — ISI · Good |
| 85 | Dulwich Prep & Senior | 812 pupils | Independent · Boarding | Unknown, London | — ISI · Good |
| 86 | Manchester High School for Girls | 930 pupils | Independent · Day · 6th | Manchester, North West | — ISI · Good |
| 87 | Claremont Fan Court School | 1,189 pupils | Independent · Day · 6th | Unknown, South East | — ISI · Good |
| 88 | City of London Freemen's School | 943 pupils | Independent · Boarding · 6th | Surrey, South East | — |
| 89 | Royal Masonic School for Girls | 928 pupils | Independent · Boarding · 6th | Rickmansworth, East of England | — ISI · Good |
| 90 | Bolton School Girls' Division | 1,035 pupils | Independent · Day · 6th | Bolton, North West | — ISI · Excellent |
| 91 | Aldenham School | 841 pupils | Independent · Boarding · 6th | Elstree, East of England | — ISI · Good |
| 92 | Caterham School | 1,012 pupils | Independent · Boarding · 6th | Caterham, South East | — ISI · Good |
| 93 | Notre Dame School | 414 pupils | Independent · Day · 6th | Unknown, South East | — ISI · Good |
| 94 | The Portsmouth Grammar School | 1,142 pupils | Independent · Day · 6th | Portsmouth, South East | — ISI · Good |
| 95 | Wells Cathedral School | 734 pupils | Independent · Boarding · 6th | Wells, South West | — ISI · Excellent |
| 96 | Kimbolton School | 1,071 pupils | Independent · Boarding · 6th | Huntingdon, East of England | — ISI · Good |
| 97 | Woldingham School | 534 pupils | Independent · Boarding · 6th | Caterham, South East | — ISI · Good |
| 98 | The King's School | 1,139 pupils | Independent · Day · 6th | Chester, North West | — ISI · Good |
| 99 | The Grammar School At Leeds | 2,051 pupils | Independent · Day · 6th | Leeds, Yorkshire and the Humber | — ISI · Good |
| 100 | Dean Close School | 499 pupils | Independent · Boarding · 6th | Cheltenham, South West | — ISI · Good |