| ACS International School Cobham | COBHAM Surrey, KT11 1BL | Map | Website |
| All Hallows Catholic School | FARNHAM Surrey, GU9 9HF | Map | Website |
| American School in London | LONDON Middlesex, NW8 0NP | Map | Website |
| Barnes Primary School | London Greater London, SW13 0QQ | tbc | tbc |
| Berkhamsted School | BERKHAMSTED Hertfordshire, HP4 2BB | Map | Website |
| Bournemouth Collegiate School (BCS) | BOURNEMOUTH Dorset, BH5 2DY | Map | Website |
| Box Hill School | DORKING Surrey, RH5 6EA | Map | Website |
| Broomwood Hall School | LONDON Middlesex, SW12 8NR | Map | Website |
| Chessington Community College | CHESSINGTON Surrey, KT9 2JS | Map | Website |
| City of London Freemen's | ASHTEAD Surrey, KT21 1ET | Map | Website |
| City of London School | LONDON Greater London, EC4V 3AL | Map | Website |
| Claremont Fan Court School | ESHER Surrey, KT10 9LY | Map | Website |
| Cranmore School | LEATHERHEAD Surrey, KT24 6AT | Map | Website |
| Danes Hill School | OXSHOTT Surrey, KT22 0JG | Map | Website |
| DLD College London | LONDON Middlesex, SE1 7FX | Map | Website |
| Dunottar School | REIGATE Surrey, RH2 7EL | Map | Website |
| Durston House | LONDON Middlesex, W5 2DR | Map | Website |
| Eaton House The Manor Preparatory School | LONDON Middlesex, SW4 9RU | Map | Website |
| Emanuel School | LONDON Surrey, SW11 1HS | Map | Website |
| Epsom College | EPSOM Surrey, KT17 4JQ | Map | Website |
| Ewell Castle School | EPSOM Surrey, KT17 2AW | Map | Website |
| Finton House School | LONDON Middlesex, SW17 7HL | Map | Website |
| Francis Holland School, Sloane Square | LONDON Middlesex, SW1W 8JF | Map | Website |
| Fulham School | LONDON Middlesex, W14 9SD | Map | Website |
| Glyn School | EPSOM Surrey, KT17 1NB | Map | Website |
| Gordon's School | WOKING Surrey, GU24 9PT | Map | Website |
| Grey Court School | RICHMOND Surrey, TW10 7HN | Map | Website |
| Gunnersbury Catholic School | BRENTFORD Middlesex, TW8 9LB | Map | Website |
| Halliford School | SHEPPERTON Middlesex, TW17 9HX | Map | Website |
| Hampton School | HAMPTON Middlesex, TW12 3HD | Map | Website |
| Highgate School | LONDON Middlesex, N6 4AY | Map | Website |
| Hill House International Junior School | LONDON Middlesex, SW1X 0EP | Map | Website |
| Hurlingham School | LONDON Middlesex, SW15 2NQ | Map | Website |
| Ibstock Place School | LONDON Surrey, SW15 5PY | Map | Website |
| James Allen's Girls' School (JAGS) | LONDON Surrey, SE22 8TE | Map | Website |
| Kew College | RICHMOND Surrey, TW9 3HQ | Map | Website |
| Kew Green Preparatory School | KEW GREEN Surrey, TW9 3AF | Map | Website |
| Kew House School | BRENTFORD Middlesex, TW8 0EX | Map | Website |
| King Edward's Witley | GODALMING Surrey, GU8 5SG | Map | Website |
| King's College School (KCS), Wimbledon | LONDON Surrey, SW19 4TT | Map | Website |
| Kingston Grammar School | KINGSTON-UPON-THAMES Surrey, KT2 6PY | Map | Website |
| Kingswood House School | EPSOM Surrey, KT19 8LF | Map | Website |
| Latymer Upper School | LONDON Greater London, W6 9LR | Map | Website |
| Ludgrove School | WOKINGHAM Berkshire, RG40 3AB | Map | Website |
| Maida Vale School | LONDON London, W9 3HR | Map | Website |
| Manor Park Primary School | Sutton Surrey, SM1 4AW | tbc | tbc |
| Newland House | TWICKENHAM Middlesex, TW1 4TQ | Map | Website |
| Newton Preparatory School | LONDON Greater London, SW8 4BX | Map | Website |
| Northwood School | NORTHWOOD HILLS Middlesex, HA6 1QG | Map | Website |
| Northwood Senior | London, SW16 1JZ | Map | Website |
| Notre Dame School | COBHAM Surrey, KT11 1HA | Map | Website |
| Notting Hill and Ealing High School | LONDON Greater London, W13 8AX | Map | Website |
| Notting Hill Preparatory School | LONDON Greater London, W11 1QQ | Map | Website |
| Old Vicarage School | RICHMOND Surrey, TW10 6QX | Map | Website |
| Overton Grange School | SUTTON Surrey, SM2 6TQ | Map | Website |
| Portland Place School | LONDON Greater London, W1B 1NJ | Map | Website |
| Prospect House School | LONDON Greater London, SW15 3NT | Map | Website |
| Putney High School | LONDON Surrey, SW15 6BH | Map | Website |
| Radnor House Twickenham | TWICKENHAM Middlesex, TW1 4QG | Map | Website |
| Reed's School | COBHAM Surrey, KT11 2ES | Map | Website |
| RGS, Guildford | GUILDFORD Surrey, GU1 3BB | Map | Website |
| Richmond Park Academy | LONDON Greater London, SW14 8RG | Map | Website |
| Riddlesdown Collegiate | PURLEY Surrey, CR8 1EX | Map | Website |
| Rokeby School, Surrey | KINGSTON UPON THAMES Surrey, KT2 7PB | Map | Website |
| Royal Russell School | CROYDON Surrey, CR9 5BX | Map | Website |
| Saint Cecilia's Church of England School | London, SW18 5JR | Map | Website |
| St Benedict's School | LONDON Middlesex, W5 2ES | Map | Website |
| St George's Junior School, Weybridge | WEYBRIDGE Surrey, KT13 8NL | Map | Website |
| St George's Weybridge | ADDLESTONE Surrey, KT15 2QS | Map | Website |
| St James Senior Boys' School | ASHFORD Middlesex, TW15 3DZ | Map | Website |
| St Marys CofE Junior School | Oxted Surrey, RH8 0NP | tbc | tbc |
| St Paul's Girls' School | LONDON Middlesex, W6 7BS | Map | Website |
| St Paul's School | LONDON Middlesex, SW13 9JT | Map | Website |
| Stockport Grammar School | STOCKPORT Cheshire, SK2 7AF | 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 Godolphin & Latymer School | LONDON Greater London, W6 0PG | Map | Website |
| The Grange School, Northwich | NORTHWICH Cheshire, CW8 1LU | Map | Website |
| The Hall | LONDON Middlesex, NW3 4NU | Map | Website |
| The Harrodian School | LONDON Middlesex, SW13 9QN | Map | Website |
| The John Lyon School | HARROW Middlesex, HA2 0HN | Map | Website |
| The King's School, Worcester | WORCESTER Worcestershire, WR1 2LL | Map | Website |
| The Kingston Academy | KINGSTON UPON THAMES Surrey, KT2 5PE | Map | Website |
| The Mall School | TWICKENHAM Middlesex, TW2 5NQ | Map | Website |
| Thomas's, Battersea | LONDON Surrey, SW11 3JB | Map | Website |
| Thomas's, Clapham | LONDON Surrey, SW11 6JZ | Map | Website |
| Tiffin Girls' School | KINGSTON-UPON-THAMES Surrey, KT2 5PL | Map | Website |
| Tiffin School | KINGSTON-UPON-THAMES Surrey, KT2 6RL | Map | Website |
| Tower House School | LONDON Middlesex, SW14 8LF | Map | Website |
| Trinity School, Croydon | CROYDON Surrey, CR9 7AT | Map | Website |
| University College School (UCS) | LONDON Middlesex, NW3 6XH | Map | Website |
| Wellington College | CROWTHORNE Berkshire, RG45 7PU | Map | Website |
| Westminster Under School | LONDON Middlesex, SW1P 2NN | Map | Website |
| Wetherby Senior School | LONDON Greater London, W1U 2QB | Map | Website |
| Weydon School | FARNHAM Surrey, GU9 8UG | Map | Website |
| Whitgift School | SOUTH CROYDON Surrey, CR2 6YT | Map | Website |
| Willington Independent Preparatory School | LONDON Surrey, SW19 7QQ | Map | Website |
| Wilson's School | WALLINGTON Surrey, SM6 9JW | Map | Website |
