| Aldenham School | BOREHAMWOOD Hertfordshire, WD6 3AJ | Map | Website |
| Alleyn's School | DULWICH London, SE22 8SU | Map | Website |
| American School in London | LONDON Middlesex, NW8 0NP | Map | Website |
| Ardingly College | HAYWARDS HEATH Sussex, RH17 6SQ | Map | Website |
| Benenden | CRANBROOK Kent, TN17 4AA | Map | Website |
| Bishop Thomas Grant School | LONDON Greater London, SW16 2HY | Map | Website |
| Bradfield College | BRADFIELD Berkshire, RG7 6AU | Map | Website |
| Brentwood School | BRENTWOOD Essex, CM15 8AS | Map | Website |
| Bromley High School | BROMLEY Kent, BR1 2TW | Map | Website |
| Caterham School | CATERHAM Surrey, CR3 6YA | Map | Website |
| Charterhouse | GODALMING Surrey, GU7 2DX | Map | Website |
| City of London School | LONDON Greater London, EC4V 3AL | Map | Website |
| Colfe's School | LONDON Kent, SE12 8AW | Map | Website |
| Croydon High School | SOUTH CROYDON Surrey, CR2 8YB | Map | Website |
| Cumnor House School for Boys | SOUTH CROYDON Surrey, CR2 6DA | Map | Website |
| Dedworth Middle School | WINDSOR Berkshire, SL4 5PE | Map | Website |
| DLD College London | LONDON Middlesex, SE1 7FX | Map | Website |
| Dolphin School | LONDON Middlesex, SW11 6QW | Map | Website |
| Dulwich College | LONDON Surrey, SE21 7LD | Map | Website |
| Dulwich Hamlet Junior School | London Greater London, SE21 7AL | tbc | tbc |
| Eltham College | LONDON Kent, SE9 4QF | Map | Website |
| Emanuel School | LONDON Surrey, SW11 1HS | Map | Website |
| Epsom College | EPSOM Surrey, KT17 4JQ | Map | Website |
| Eton College | WINDSOR Berkshire, SL4 6DW | Map | Website |
| Farnborough Hill | FARNBOROUGH Hampshire, GU14 8AT | Map | Website |
| Finton House School | LONDON Middlesex, SW17 7HL | Map | Website |
| Forest School | LONDON Greater London, E17 3PY | Map | Website |
| Framlingham College | WOODBRIDGE Suffolk, IP13 9EY | Map | Website |
| Glyn School | EPSOM Surrey, KT17 1NB | Map | Website |
| Haberdashers' Elstree Schools | ELSTREE Hertfordshire, WD6 3AF | Map | Website |
| Haileybury | HERTFORD Hertfordshire, SG13 7NU | Map | Website |
| Hampton School | HAMPTON Middlesex, TW12 3HD | Map | Website |
| Heber Primary School | London Greater London, SE22 9LA | tbc | tbc |
| Highgate School | LONDON Middlesex, N6 4AY | Map | Website |
| Hornsby House School | LONDON Middlesex, SW12 8RS | Map | Website |
| Ibstock Place School | LONDON Surrey, SW15 5PY | Map | Website |
| Ipswich School | IPSWICH Suffolk, IP1 3SG | Map | Website |
| James Allen's Girls' School (JAGS) | LONDON Surrey, SE22 8TE | Map | Website |
| Kent College Pembury | TUNBRIDGE WELLS Kent, TN2 4AX | Map | Website |
| King's College School (KCS), Wimbledon | LONDON Surrey, SW19 4TT | Map | Website |
| Kingsdale Foundation School | LONDON Surrey, SE21 8SQ | Map | Website |
| Kingston Grammar School | KINGSTON-UPON-THAMES Surrey, KT2 6PY | Map | Website |
| Langley Park School for Boys | BECKENHAM Kent, BR3 3BP | Map | Website |
| Latymer Upper School | LONDON Greater London, W6 9LR | Map | Website |
| Mill Hill & Belmont Schools | LONDON Middlesex, NW7 1QS | Map | Website |
| Oakfield Preparatory School | LONDON Greater London, SE21 8HP | Map | Website |
| Oxted School | OXTED Surrey, RH8 0AB | Map | Website |
| Putney High School | LONDON Surrey, SW15 6BH | Map | Website |
| Reed's School | COBHAM Surrey, KT11 2ES | Map | Website |
| Reigate Grammar School | REIGATE Surrey, RH2 0QS | Map | Website |
| RGS, Guildford | GUILDFORD Surrey, GU1 3BB | Map | Website |
| Rosemead Preparatory School | LONDON Greater London, SE21 8HZ | Map | Website |
| Rossall School | FLEETWOOD Lancashire, FY7 8JW | Map | Website |
| Royal Russell School | CROYDON Surrey, CR9 5BX | Map | Website |
| Saint Cecilia's Church of England School | London, SW18 5JR | Map | Website |
| Sevenoaks School | SEVENOAKS Kent, TN13 1HU | Map | Website |
| St Benedict's School | LONDON Middlesex, W5 2ES | Map | Website |
| St Dunstan's College | LONDON Kent, SE6 4TY | Map | Website |
| St Joseph's College | LONDON Greater London, SE19 3HL | Map | Website |
| St Paul's Girls' School | LONDON Middlesex, W6 7BS | Map | Website |
| St Swithun's School | WINCHESTER Hampshire, SO21 1HA | Map | Website |
| Streatham & Clapham High School | LONDON Greater London, SW16 1AW | Map | Website |
| Surbiton High School | KINGSTON-UPON-THAMES Surrey, KT1 2JT | Map | Website |
| Sutton Grammar School for Boys | SUTTON Surrey, SM1 4AS | Map | Website |
| The Charter School East Dulwich | LONDON Greater London, SE5 7EW | Map | Website |
| The Godolphin & Latymer School | LONDON Greater London, W6 0PG | Map | Website |
| Thomas's Putney Vale | London, SW15 3EQ | Map | Website |
| Thomas's, Battersea | LONDON Surrey, SW11 3JB | Map | Website |
| Trinity School, Croydon | CROYDON Surrey, CR9 7AT | Map | Website |
| University College School (UCS) | LONDON Middlesex, NW3 6XH | Map | Website |
| Walthamstow Hall | SEVENOAKS Kent, TN13 3UL | Map | Website |
| Westminster School | LONDON Middlesex, SW1P 3PF | Map | Website |
| Whitgift School | SOUTH CROYDON Surrey, CR2 6YT | Map | Website |
| Wilson's School | WALLINGTON Surrey, SM6 9JW | Map | Website |
| Wimbledon High School | LONDON Greater London, SW19 4AB | Map | Website |
| Winchester College | WINCHESTER Hampshire, SO23 9NA | Map | Website |
