| 1 | JFS Period 202324 | 2.04 | State · Day · 6th | Harrow, London | Good |
| 2 | The Excelsior Academy Period 202324 | 1.31 | Academy · Day · 6th | London, London | Good |
| 3 | Whitmore High School Period 202324 | 1.23 | State · Day · 6th | Harrow, London | — |
| 4 | Saint John Bosco College Period 202425 | 1.20 | State · Day · 6th | London, London | — |
| 5 | Oak Wood School Period 202324 | 1.16 | State · Day · 6th | Uxbridge, London | Good |
| 6 | Maria Fidelis Catholic School FCJ Period 202425 | 1.15 | State · Day · 6th | London, London | — |
| 7 | St Mark's Church of England Academy Period 202324 | 1.13 | Academy · Day · 6th | Mitcham, London | Outstanding |
| 8 | Haberdashers' Knights Academy Period 202425 | 1.11 | Academy · Day · 6th | Bromley, London | — |
| 9 | Park Academy West London Period 202425 | 1.10 | Academy · Day · 6th | Hillingdon, London | Requires Improvement |
| 10 | Heston Community School Period 202425 | 1.08 | Academy · Day · 6th | Hounslow, London | Good |
| 11 | Harris Lowe Academy Willesden Period 202324 | 1.04 | Academy · Day · 6th | London, London | — |
| 12 | Ark Acton Academy Period 202425 | 1.04 | Academy · Day · 6th | London, London | Good |
| 13 | Jo Richardson Community School Period 202324 | 1.04 | State · Day · 6th | Dagenham, London | Outstanding |
| 14 | Riverside School Period 202425 | 0.99 | Free School · Day · 6th | Barking, London | Outstanding |
| 15 | Dormers Wells High School Period 202324 | 0.96 | Academy · Day · 6th | Southall, London | — |
| 16 | The Quest Academy Period 202324 | 0.96 | Academy · Day · 6th | South Croydon, London | Requires Improvement |
| 17 | Haverstock School Period 202425 | 0.95 | State · Day · 6th | London, London | — |
| 18 | Queens Park Community School Period 202425 | 0.95 | Academy · Day · 6th | London, London | — |
| 19 | Harrow High School Period 202324 | 0.95 | Academy · Day · 6th | Harrow, London | — |
| 20 | Ark Elvin Academy Period 202324 | 0.93 | Academy · Day · 6th | London, London | Outstanding |
| 21 | Skinners' Academy Period 202425 | 0.93 | Academy · Day · 6th | London, London | Good |
| 22 | The Palmer Catholic Academy Period 202324 | 0.91 | Academy · Day · 6th | Ilford, London | — |
| 23 | Harris City Academy Crystal Palace Period 202324 | 0.90 | Academy · Day · 6th | London, London | — |
| 24 | City of London Academy, Highgate Hill Period 202425 | 0.88 | Free School · Day · 6th | London, London | Good |
| 25 | West London Free School Period 202324 | 0.87 | Free School · Day · 6th | London, London | Good |