| 101 | Mulberry Stepney Green Mathematics and Computing College | 1,352 pupils | Academy · Day · 6th | London, London | — |
| 102 | The Bishop's Stortford High School | 1,260 pupils | State · Day · 6th | Bishop's Stortford, East of England | — |
| 103 | Wimbledon College | 1,258 pupils | State · Day · 6th | London, London | — |
| 104 | The Campion School | 1,244 pupils | Academy · Day · 6th | Hornchurch, London | — |
| 105 | St Birinus School | 1,212 pupils | Academy · Day · 6th | Didcot, South East | — |
| 106 | Simon Langton Grammar School for Boys | 1,211 pupils | Grammar · Day · 6th | Canterbury, South East | — |
| 107 | St Thomas More High School | 1,206 pupils | Academy · Day · 6th | Westcliff-on-Sea, East of England | — |
| 108 | Poole Grammar School | 1,199 pupils | Grammar · Day · 6th | Poole, South West | — |
| 109 | Finchley Catholic High School | 1,192 pupils | State · Day · 6th | London, London | — |
| 110 | Wilmington Grammar School for Boys | 1,178 pupils | Grammar · Day · 6th | Dartford, South East | — |
| 111 | The John Fisher School | 1,134 pupils | State · Day · 6th | Purley, London | — |
| 112 | Central Foundation Boys' School | 1,133 pupils | State · Day · 6th | London, London | — |
| 113 | Marling School | 1,117 pupils | Grammar · Day · 6th | Stroud, South West | — |
| 114 | Wallington County Grammar School | 1,117 pupils | Grammar · Day · 6th | Wallington, London | — |
| 115 | The St Thomas the Apostle College | 1,111 pupils | State · Day · 6th | London, London | — |
| 116 | Oakwood Park Grammar School | 1,088 pupils | Grammar · Day · 6th | Maidstone, South East | — |
| 117 | St Olave's and St Saviour's Grammar School | 1,085 pupils | Grammar · Day · 6th | Orpington, London | — |
| 118 | Holcombe Grammar School | 1,036 pupils | Grammar · Day · 6th | Chatham, South East | — |
| 119 | Coombe Boys' School | 1,030 pupils | Academy · Day · 6th | New Malden, London | — |
| 120 | Enfield Grammar School | 1,025 pupils | Academy · Day · 6th | Enfield, London | — |
| 121 | The Harvey Grammar School | 1,015 pupils | Grammar · Day · 6th | Folkestone, South East | — |
| 122 | St Ignatius College | 999 pupils | State · Day · 6th | Enfield, London | — |
| 123 | St Aidan's Catholic Academy | 992 pupils | Academy · Day · 6th | Sunderland, North East | — |
| 124 | The Windsor Boys' School | 990 pupils | Academy · Day · 6th | Windsor, South East | — |
| 125 | St Anselm's College | 985 pupils | Grammar · Day · 6th | Prenton, North West | — |