| 1 | Haberdashers' Girls' School Period 202122 | 53.6 | Independent · Day · 6th | Borehamwood, East of England | — |
| 2 | Haberdashers' Boys' School Period 202122 | 53.3 | Independent · Day · 6th | Unknown, East of England | — |
| 3 | The Perse School Period 202122 | 53.1 | Independent · Day · 6th | Unknown, East of England | — |
| 4 | Cardiff Sixth Form College, Cambridge Period 202324 | 52.1 | Independent · Boarding · 6th | Unknown, East of England | — |
| 5 | St Albans High School for Girls Period 202122 | 51.3 | Independent · Day · 6th | Unknown, East of England | — |
| 6 | St Albans School Period 202122 | 50.8 | Independent · Day · 6th | St Albans, East of England | — |
| 7 | Merchant Taylors' School Period 202122 | 50.7 | Independent · Day · 6th | Northwood, East of England | — |
| 8 | OneSchool Global UK Colchester Campus Period 202425 | 50.0 | Independent · Day · 6th | Colchester, East of England | — |
| 9 | Norwich High School for Girls GDST Period 202122 | 49.4 | Independent · Day · 6th | Unknown, East of England | — |
| 10 | Berkhamsted School Period 202122 | 49.2 | Independent · Boarding · 6th | Berkhamsted, East of England | — |
| 11 | Bedford Modern School Period 202122 | 49.1 | Independent · Day · 6th | Bedford, East of England | — |
| 12 | Immanuel College Period 202122 | 48.5 | Independent · Day · 6th | Bushey, East of England | — |
| 13 | Norwich School Period 202122 | 48.0 | Independent · Day · 6th | Norwich, East of England | — |
| 14 | Haileybury College Period 202122 | 47.6 | Independent · Boarding · 6th | Hertford, East of England | — |
| 15 | Bishop's Stortford College Period 202122 | 47.6 | Independent · Boarding · 6th | Bishop's Stortford, East of England | — |
| 16 | Chigwell School Period 202122 | 47.4 | Independent · Boarding · 6th | Chigwell, East of England | — |
| 17 | The Leys School Period 202324 | 47.4 | Independent · Boarding · 6th | Cambridge, East of England | — |
| 18 | The Stephen Perse Foundation Period 202122 | 46.7 | Independent · Boarding · 6th | Unknown, East of England | — |
| 19 | St Francis College Period 202122 | 46.4 | Independent · Boarding · 6th | Letchworth Garden City, East of England | — |
| 20 | Ipswich School Period 202122 | 46.3 | Independent · Boarding · 6th | Ipswich, East of England | — |
| 21 | Abbey College Cambridge Period 202122 | 46.1 | Independent · Boarding · 6th | Cambridgeshire, East of England | — |
| 22 | Saint Felix School Period 202122 | 45.7 | Independent · Boarding · 6th | Southwold, East of England | — |
| 23 | Brentwood School Period 202122 | 45.7 | Independent · Boarding · 6th | Brentwood, East of England | — |
| 24 | Royal Masonic School for Girls Period 202324 | 45.6 | Independent · Boarding · 6th | Rickmansworth, East of England | — |
| 25 | Woodbridge School Period 202122 | 45.4 | Independent · Boarding · 6th | Woodbridge, East of England | — |