| Aldenham School | BOREHAMWOOD Hertfordshire, WD6 3AJ | Map | Website |
| Berkhamsted School | BERKHAMSTED Hertfordshire, HP4 2BB | Map | Website |
| Chigwell School | CHIGWELL Essex, IG7 6QF | Map | Website |
| City of London School | LONDON Greater London, EC4V 3AL | Map | Website |
| Dr Challoner's Grammar School | AMERSHAM Buckinghamshire, HP6 5HA | Map | Website |
| Forest School | LONDON Greater London, E17 3PY | Map | Website |
| Hampton School | HAMPTON Middlesex, TW12 3HD | Map | Website |
| Harrow School | HARROW-ON-THE-HILL Middlesex, HA1 3HP | Map | Website |
| Highgate School | LONDON Middlesex, N6 4AY | Map | Website |
| Ibstock Place School | LONDON Surrey, SW15 5PY | Map | Website |
| Kew House School | BRENTFORD Middlesex, TW8 0EX | Map | Website |
| King Edward's Witley | GODALMING Surrey, GU8 5SG | Map | Website |
| Latymer Upper School | LONDON Greater London, W6 9LR | Map | Website |
| Merchant Taylors' School, Northwood | NORTHWOOD Middlesex, HA6 2HT | Map | Website |
| Mill Hill & Belmont Schools | LONDON Middlesex, NW7 1QS | Map | Website |
| Orley Farm School | HARROW-ON-THE-HILL Middlesex, HA1 3NU | Map | Website |
| Radnor House Twickenham | TWICKENHAM Middlesex, TW1 4QG | Map | Website |
| St Albans School | ST ALBANS Hertfordshire, AL3 4HB | Map | Website |
| St James Senior Boys' School | ASHFORD Middlesex, TW15 3DZ | Map | Website |
| St Martin's School, Northwood | NORTHWOOD Middlesex, HA6 2DJ | Map | Website |
| The Haberdashers' Aske's Boys' School | ELSTREE Hertfordshire, WD6 3AF | Map | Website |
| The Harrodian School | LONDON Middlesex, SW13 9QN | Map | Website |
| Westminster School | LONDON Middlesex, SW1P 3PF | Map | Website |
| Wetherby Senior School | LONDON Greater London, W1U 2QB | Map | Website |
