| 1 | Magdalen College School | 950 pupils | Independent · Day · 6th | Oxford, South East | — ISI · Good |
| 2 | The Manchester Grammar School | 1,659 pupils | Independent · Day · 6th | Manchester, North West | — ISI · Good |
| 3 | City of London School | 1,074 pupils | Independent · Day · 6th | London, London | — ISI · Good |
| 4 | King's College School | 1,507 pupils | Independent · Day · 6th | London, London | — |
| 5 | Hampton School | 1,548 pupils | Independent · Day · 6th | Hampton, London | — ISI · Excellent |
| 6 | Royal Grammar School Guildford | 1,311 pupils | Independent · Day · 6th | Unknown, South East | — |
| 7 | Merchant Taylors' School | 959 pupils | Independent · Day · 6th | Northwood, East of England | — ISI · Good |
| 8 | Trinity School | 1,049 pupils | Independent · Day · 6th | Unknown, London | — ISI · Good |
| 9 | Haberdashers' Boys' School | 1,457 pupils | Independent · Day · 6th | Unknown, East of England | — |
| 10 | St Albans School | 887 pupils | Independent · Day · 6th | St Albans, East of England | — ISI · Good |
| 11 | Queen Elizabeth's Hospital | 754 pupils | Independent · Day · 6th | Bristol, South West | — ISI · Good |
| 12 | University College School | 1,305 pupils | Independent · Day · 6th | London, London | — |
| 13 | Queen Elizabeth Grammar School | 755 pupils | Independent · Day · 6th | Wakefield, Yorkshire and the Humber | — ISI · Good |
| 14 | Bolton School Boys' Division | 1,124 pupils | Independent · Day · 6th | Bolton, North West | — ISI · Good |
| 15 | St Columba's College | 830 pupils | Independent · Day · 6th | St Albans, East of England | — |
| 16 | Wetherby Senior School | 457 pupils | Independent · Day · 6th | London, London | — ISI · Good |
| 17 | King Edward's School | 837 pupils | Independent · Day · 6th | Birmingham, West Midlands | — ISI · Good |
| 18 | Salesian College | 566 pupils | Independent · Day · 6th | Farnborough, South East | — ISI · Good |
| 19 | St James Senior Boys' School | 327 pupils | Independent · Day · 6th | Ashford, South East | — ISI · Good |
| 20 | Reading Blue Coat School | 824 pupils | Independent · Day · 6th | Berkshire, South East | — ISI · Good |
| 21 | Birkdale School | 712 pupils | Independent · Day · 6th | Sheffield, Yorkshire and the Humber | — |
| 22 | Derby Grammar School | 161 pupils | Independent · Day · 6th | Unknown, East Midlands | — ISI · Good |
| 23 | Menorah Grammar School | Requires Improvement | Independent · Day · 6th | Edgware, London | Requires Improvement |
| 24 | Newcastle School for Boys | 361 pupils | Independent · Day · 6th | Newcastle-upon-Tyne, North East | — ISI · Good |
| 25 | Merchant Taylors' Schools | 371 pupils | Independent · Day · 6th | Liverpool, North West | — |