| Aldenham School | BOREHAMWOOD Hertfordshire, WD6 3AJ | Map | Website |
| Aldwickbury School | HARPENDEN Hertfordshire, AL5 1AD | Map | Website |
| Ashfold School | AYLESBURY Buckinghamshire, HP18 9NG | Map | Website |
| Bancroft's School | WOODFORD GREEN Essex, IG8 0RF | Map | Website |
| Beachborough School | BRACKLEY Northamptonshire, NN13 5LB | Map | Website |
| Berkhamsted School | BERKHAMSTED Hertfordshire, HP4 2BB | Map | Website |
| Caldicott Preparatory School | FARNHAM ROYAL Buckinghamshire, SL2 3SL | Map | Website |
| Campion School, Essex | HORNCHURCH Essex, RM11 3BX | Map | Website |
| Chesham Preparatory School | CHESHAM Buckinghamshire, HP5 3QF | Map | Website |
| Claires Court School | MAIDENHEAD Berkshire, SL6 6AW | Map | Website |
| Davenies Preparatory School | BEACONSFIELD Buckinghamshire, HP9 1AA | Map | Website |
| Dragon School | OXFORD Oxfordshire, OX2 6SS | Map | Website |
| Emanuel School | LONDON Surrey, SW11 1HS | Map | Website |
| Felsted Preparatory School | NR DUNMOW Essex, CM6 3JL | Map | Website |
| Gayhurst School | GERRARDS CROSS Buckinghamshire, SL9 8RJ | Map | Website |
| Gresham's School | HOLT Norfolk, NR25 6EA | Map | Website |
| Haileybury | HERTFORD Hertfordshire, SG13 7NU | Map | Website |
| Ibstock Place School | LONDON Surrey, SW15 5PY | Map | Website |
| King's College School (KCS), Wimbledon | LONDON Surrey, SW19 4TT | Map | Website |
| King's Hall | TAUNTON Somerset, TA2 8AA | Map | Website |
| London Oratory School | LONDON Middlesex, SW6 1RX | Map | Website |
| Merchant Taylors' Prep (formerly Northwood Prep) | RICKMANSWORTH Hertfordshire, WD3 1LW | Map | Website |
| Merchant Taylors' School, Northwood | NORTHWOOD Middlesex, HA6 2HT | Map | Website |
| Mill Hill & Belmont Schools | LONDON Middlesex, NW7 1QS | Map | Website |
| Newland House | TWICKENHAM Middlesex, TW1 4TQ | Map | Website |
| Orley Farm School | HARROW-ON-THE-HILL Middlesex, HA1 3NU | Map | Website |
| Quainton Hall Preparatory | HARROW Middlesex, HA1 1RX | Map | Website |
| Sedbergh Prep School | KIRKBY LONSDALE Cumbria, LA6 2SG | Map | Website |
| St Albans School | ST ALBANS Hertfordshire, AL3 4HB | Map | Website |
| St Benedict's Junior School | LONDON Middlesex, W5 2XP | Map | Website |
| St Benedict's School | LONDON Middlesex, W5 2ES | Map | Website |
| St Columba's College | ST ALBANS Hertfordshire, AL3 4AW | Map | Website |
| St Hugh's School | FARINGDON Oxfordshire, SN7 8PT | Map | Website |
| St John's Beaumont School | OLD WINDSOR Berkshire, SL4 2JN | Map | Website |
| St John's College School | CAMBRIDGE Cambridgeshire, CB3 9AB | Map | Website |
| St Martin's School, Northwood | NORTHWOOD Middlesex, HA6 2DJ | Map | Website |
| St Paul's School | LONDON Middlesex, SW13 9JT | Map | Website |
| Summer Fields School | OXFORD Oxfordshire, OX2 7EN | Map | Website |
| The Beacon School | AMERSHAM Buckinghamshire, HP6 5PF | Map | Website |
| The Haberdashers' Aske's Boys' School | ELSTREE Hertfordshire, WD6 3AF | Map | Website |
| The Manchester Grammar School | MANCHESTER Lancashire, M13 0XT | Map | Website |
| Trinity School, Croydon | CROYDON Surrey, CR9 7AT | Map | Website |
| University College School (UCS) | LONDON Middlesex, NW3 6XH | Map | Website |
| Warwick School | WARWICK Warwickshire, CV34 6PP | Map | Website |
| Wetherby Preparatory School | LONDON Greater London, W1H 2EA | Map | Website |
| York House School | RICKMANSWORTH Hertfordshire, WD3 4LW | Map | Website |
