| Barnardiston Hall Preparatory School | HAVERHILL Suffolk, CB9 7TG | Map | Website |
| Bishop's Stortford College | BISHOP'S STORTFORD Hertfordshire, CM23 2PJ | Map | Website |
| Bradfield College | BRADFIELD Berkshire, RG7 6AU | Map | Website |
| Brentwood School | BRENTWOOD Essex, CM15 8AS | Map | Website |
| Brooke House College | MARKET HARBOROUGH Leicestershire, LE16 7AU | Map | Website |
| Chantry Academy | IPSWICH Suffolk, IP2 9LR | Map | Website |
| Chigwell School | CHIGWELL Essex, IG7 6QF | Map | Website |
| Claydon High School | IPSWICH Suffolk, IP6 0EG | Map | Website |
| Coopers' Company & Coborn School | UPMINSTER Essex, RM14 3HS | Map | Website |
| Copleston High School | IPSWICH Suffolk, IP4 5HD | Map | Website |
| Culford School | BURY ST EDMUNDS Suffolk, IP28 6TX | Map | Website |
| Debenham High School | STOWMARKET Suffolk, IP14 6BL | Map | Website |
| Denstone College | UTTOXETER Staffordshire, ST14 5HN | Map | Website |
| Dulwich College | LONDON Surrey, SE21 7LD | Map | Website |
| East Bergholt High School | COLCHESTER Essex, CO7 6RJ | Map | Website |
| East Norfolk 6th Form College | GREAT YARMOUTH Norfolk, NR31 7BQ | Map | Website |
| Eltham College | LONDON Kent, SE9 4QF | Map | Website |
| Farlingaye High School | WOODBRIDGE Suffolk, IP12 4JX | Map | Website |
| Felixstowe Academy | FELIXSTOWE Suffolk, IP11 9QR | Map | Website |
| Felsted School | DUNMOW Essex, CM6 3LL | Map | Website |
| Finborough School | STOWMARKET Suffolk, IP14 3EF | Map | Website |
| Forest Gate Community School | LONDON Greater London, E7 9BB | Map | Website |
| Forest School | LONDON Greater London, E17 3PY | Map | Website |
| Framlingham College | WOODBRIDGE Suffolk, IP13 9EY | Map | Website |
| Framlingham College Prep School | WOODBRIDGE Suffolk, IP13 7AH | Map | Website |
| Gresham's School | HOLT Norfolk, NR25 6EA | Map | Website |
| Hadleigh High School | IPSWICH Suffolk, IP7 5HU | Map | Website |
| Harwich and Dovercourt High School | HARWICH Essex, CO12 3TG | Map | Website |
| Highgate School | LONDON Middlesex, N6 4AY | Map | Website |
| Hills Road Sixth Form College | CAMBRIDGE Cambridgeshire, CB2 8PE | Map | Website |
| Holbrook Academy | IPSWICH Suffolk, IP9 2QX | Map | Website |
| Holmwood House Preparatory School | COLCHESTER Essex, CO3 9ST | Map | Website |
| Ipswich High School | IPSWICH Suffolk, IP9 1AZ | Map | Website |
| Ipswich Preparatory School | IPSWICH Suffolk, IP1 3QW | Map | Website |
| Ipswich School | IPSWICH Suffolk, IP1 3SG | Map | Website |
| Kesgrave High School | IPSWICH Suffolk, IP5 2PB | Map | Website |
| Kirkham Grammar School | KIRKHAM Lancashire, PR4 2BH | Map | Website |
| Langley School | NORWICH Norfolk, NR14 6BJ | Map | Website |
| Littlegarth School | COLCHESTER Essex, CO6 4JR | Map | Website |
| Long Road 6th Form College | CAMBRIDGE Cambridgeshire, CB2 8PX | Map | Website |
| Marylebone Cricket Club (MCC) | LONDON Greater London, NW8 8QN | Map | Website |
| Moreton Hall Prep School | BURY ST EDMUNDS Suffolk, IP32 7BJ | Map | Website |
| Nayland Primary School | Colchester Essex, CO6 4HZ | tbc | tbc |
| New Hall School | CHELMSFORD Essex, CM3 3HS | Map | Website |
| North Bridge House Prep School | LONDON Greater London, NW1 7AB | Map | Website |
| Northampton School for Boys | NORTHAMPTON Northamptonshire, NN1 5RT | Map | Website |
| Northgate High School, Ipswich | IPSWICH Suffolk, IP4 3DL | Map | Website |
| Norwich School | NORWICH Norfolk, NR1 4DD | Map | Website |
| Oaklands College | ST ALBANS Hertfordshire, AL4 0JA | Map | Website |
| Ormiston Endeavour Academy | IPSWICH Suffolk, IP1 6SG | Map | Website |
| Orwell Park School | IPSWICH Suffolk, IP10 0ER | Map | Website |
| Queenswood School | HATFIELD Hertfordshire, AL9 6NS | Map | Website |
| RGS, Colchester | COLCHESTER Essex, CO3 3ND | Map | Website |
| RGS, High Wycombe | HIGH WYCOMBE Buckinghamshire, HP13 6QT | Map | Website |
| RGS, Newcastle | NEWCASTLE-UPON-TYNE Northumberland, NE2 4DX | Map | Website |
| Robert Clack School | DAGENHAM Essex, RM8 1JU | Map | Website |
| Royal Hospital School | IPSWICH Suffolk, IP9 2RX | Map | Website |
| Royal Russell School | CROYDON Surrey, CR9 5BX | Map | Website |
| Samuel Whitbread Academy | SHEFFORD Bedfordshire, SG17 5QS | Map | Website |
| SEEVIC College | BENFLEET Essex, SS7 1TW | Map | Website |
| St Albans Catholic High School | IPSWICH Suffolk, IP4 3NJ | Map | Website |
| St Felix School | SOUTHWOLD Suffolk, IP18 6SD | Map | Website |
| Stoke High School | IPSWICH Suffolk, IP2 8PL | Map | Website |
| The Abbey Preparatory School | WOODBRIDGE Suffolk, IP12 1DS | Map | Website |
| The Haberdashers' Aske's Boys' School | ELSTREE Hertfordshire, WD6 3AF | Map | Website |
| The Sixth Form College Colchester | COLCHESTER Essex, C01 1SN | Map | Website |
| Thomas Mills High School | FRAMLINGHAM Suffolk, IP13 9HE | Map | Website |
| Tonbridge School | TONBRIDGE Kent, TN9 1JP | Map | Website |
| University College School (UCS) | LONDON Middlesex, NW3 6XH | Map | Website |
| Weavers Academy | WELLINGBOROUGH Northamptonshire, NN8 3JH | Map | Website |
| West Suffolk College | BURY ST EDMUNDS Suffolk, IP33 3RL | Map | Website |
| Westbourne Academy | IPSWICH Suffolk, IP1 5JN | Map | Website |
| Whitchurch High School | CARDIFF Glamorgan, CF14 2XJ | Map | Website |
| Whitgift School | SOUTH CROYDON Surrey, CR2 6YT | Map | Website |
| Wisbech Grammar School | WISBECH Cambridgeshire, PE13 1JX | Map | Website |
| Woodbridge School | WOODBRIDGE Suffolk, IP12 4JH | Map | Website |
| Wycombe Abbey School | HIGH WYCOMBE Buckinghamshire, HP11 1PE | Map | Website |
| Wymondham College | WYMONDHAM Norfolk, NR18 9SZ | Map | Website |
