| Aldenham School | BOREHAMWOOD Hertfordshire, WD6 3AJ | Map | Website |
| Ashlyns School | BERKHAMSTED Hertfordshire, HP4 3AH | Map | Website |
| Aylesbury Grammar School | AYLESBURY Buckinghamshire, HP21 7RP | Map | Website |
| Bancroft's School | WOODFORD GREEN Essex, IG8 0RF | Map | Website |
| Bedford Modern School | BEDFORD Bedfordshire, MK41 7NT | Map | Website |
| Berkhamsted School | BERKHAMSTED Hertfordshire, HP4 2BB | Map | Website |
| Brentwood School | BRENTWOOD Essex, CM15 8AS | Map | Website |
| Chancellor's School | HATFIELD Hertfordshire, AL9 7BN | Map | Website |
| Chesham Preparatory School | CHESHAM Buckinghamshire, HP5 3QF | 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 |
| Dwight School London | LONDON Greater London, N11 3LX | Map | Website |
| Eton College | WINDSOR Berkshire, SL4 6DW | Map | Website |
| Forest School | LONDON Greater London, E17 3PY | Map | Website |
| Gayhurst School | GERRARDS CROSS Buckinghamshire, SL9 8RJ | Map | Website |
| Haileybury | HERTFORD Hertfordshire, SG13 7NU | Map | Website |
| Highgate School | LONDON Middlesex, N6 4AY | Map | Website |
| Hitchin Boys' School | HITCHIN Hertfordshire, SG5 1JB | Map | Website |
| Immanuel College | BUSHEY Hertfordshire, WD23 4EB | Map | Website |
| Kings Langley School | KINGS LANGLEY Hertfordshire, WD4 9HN | Map | Website |
| London Oratory School | LONDON Middlesex, SW6 1RX | Map | Website |
| Manor Lodge School | SHENLEY Hertfordshire, WD7 9BG | Map | Website |
| Merchant Taylors' Prep | RICKMANSWORTH Hertfordshire, WD3 1LW | Map | Website |
| Mill Hill & Belmont Schools | LONDON Middlesex, NW7 1QS | Map | Website |
| Newcastle-Under-Lyme School | NEWCASTLE-UNDER-LYME Staffordshire, ST5 1DB | Map | Website |
| Norfolk House School | LONDON Greater London, N10 2EG | Map | Website |
| Northampton School for Boys | NORTHAMPTON Northamptonshire, NN1 5RT | Map | Website |
| Parmiter's School | WATFORD Hertfordshire, WD25 0UU | Map | Website |
| Queen Elizabeth's School, Barnet | BARNET Hertfordshire, EN5 4DQ | Map | Website |
| Queenswood School | HATFIELD Hertfordshire, AL9 6NS | Map | Website |
| Sandringham School | ST ALBANS Hertfordshire, AL4 9NX | Map | Website |
| St Albans School | ST ALBANS Hertfordshire, AL3 4HB | Map | Website |
| St Benedict's Junior School | LONDON Middlesex, W5 2XP | Map | Website |
| St Columba's College | ST ALBANS Hertfordshire, AL3 4AW | Map | Website |
| St Edmund's College, Ware | WARE Hertfordshire, SG11 1DS | Map | Website |
| St George's School, Harpenden | HARPENDEN Hertfordshire, AL5 4TD | Map | Website |
| St John's School, Northwood | NORTHWOOD Middlesex, HA6 3QY | Map | Website |
| St Joseph's College, Ipswich | IPSWICH Suffolk, IP2 9DR | Map | Website |
| St Paul's School | LONDON Middlesex, SW13 9JT | Map | Website |
| The Beacon School | AMERSHAM Buckinghamshire, HP6 5PF | Map | Website |
| The Corbet School | SHREWSBURY Shropshire, SY4 2AX | Map | Website |
| The John Lyon School | HARROW Middlesex, HA2 0HN | Map | Website |
| The King Alfred School | LONDON Greater London, NW11 7HY | Map | Website |
| The King's School, Grantham | GRANTHAM Lincolnshire, NG31 6RP | Map | Website |
| The Latymer School | LONDON Middlesex, N9 9TN | Map | Website |
| The Marlborough Science Academy | ST ALBANS Hertfordshire, AL1 2QA | Map | Website |
| The Royal Masonic School for Girls | RICKMANSWORTH Hertfordshire, WD3 4HF | Map | Website |
| The St Marylebone CofE School | LONDON Greater London, W1U 5BA | Map | Website |
| Tring School | TRING Hertfordshire, HP23 5JD | Map | Website |
| University College School (UCS) | LONDON Middlesex, NW3 6XH | Map | Website |
| Watford Grammar School for Boys | WATFORD Hertfordshire, WD18 7JF | Map | Website |
