| Aldenham School | BOREHAMWOOD Hertfordshire, WD6 3AJ | Map | Website |
| Aldwickbury School | HARPENDEN Hertfordshire, AL5 1AD | Map | Website |
| Arnold House School | LONDON Middlesex, NW8 0LH | Map | Website |
| Bancroft's School | WOODFORD GREEN Essex, IG8 0RF | Map | Website |
| Bedford Modern School | BEDFORD Bedfordshire, MK41 7NT | Map | Website |
| Bedford Preparatory School | BEDFORD Bedfordshire, MK40 2TU | Map | Website |
| Bedford School | BEDFORD Bedfordshire, MK40 2TU | Map | Website |
| Beeston Hall | CROMER Norfolk, NR27 9NQ | Map | Website |
| Bishop's Stortford High School | BISHOP'S STORTFORD Hertfordshire, CM23 3LU | Map | Website |
| Brentwood School | BRENTWOOD Essex, CM15 8AS | Map | Website |
| Caldicott Preparatory School | FARNHAM ROYAL Buckinghamshire, SL2 3SL | Map | Website |
| Chigwell School | CHIGWELL Essex, IG7 6QF | Map | Website |
| Coopers' Company & Coborn School | UPMINSTER Essex, RM14 3HS | Map | Website |
| Culford School | BURY ST EDMUNDS Suffolk, IP28 6TX | Map | Website |
| Dame Bradbury's School | SAFFRON WALDEN Essex, CB10 2AL | Map | Website |
| Downsend School | LEATHERHEAD Surrey, KT22 8TJ | Map | Website |
| Eltham College | LONDON Kent, SE9 4QF | Map | Website |
| Felsted Preparatory School | NR DUNMOW Essex, CM6 3JL | Map | Website |
| Felsted School | DUNMOW Essex, CM6 3LL | Map | Website |
| Feltonfleet School | COBHAM Surrey, KT11 1DR | Map | Website |
| Forest School | LONDON Greater London, E17 3PY | Map | Website |
| Framlingham College | WOODBRIDGE Suffolk, IP13 9EY | Map | Website |
| Gresham's School | HOLT Norfolk, NR25 6EA | Map | Website |
| Haileybury | HERTFORD Hertfordshire, SG13 7NU | Map | Website |
| Hall Grove School | BAGSHOT Surrey, GU19 5HZ | Map | Website |
| Hazlegrove School | YEOVIL Somerset, BA22 7JA | Map | Website |
| Heath Mount School | HERTFORD Hertfordshire, SG14 3NG | Map | Website |
| Hertfordshire and Essex High School | BISHOPS STORTFORD Hertfordshire, CM23 5NJ | Map | Website |
| Highfield Preparatory School | MAIDENHEAD Berkshire, SL6 1PD | Map | Website |
| Hitchin Boys' School | HITCHIN Hertfordshire, SG5 1JB | Map | Website |
| Hockerill Anglo-European College | BISHOPS STORTFORD Hertfordshire, CM23 5HX | Map | Website |
| Ipswich School | IPSWICH Suffolk, IP1 3SG | Map | Website |
| Kent College | CANTERBURY Kent, CT2 9DT | Map | Website |
| Kimbolton School | HUNTINGDON Cambridgeshire, PE28 0EA | Map | Website |
| King's College School | CAMBRIDGE Cambridgeshire, CB3 9DN | Map | Website |
| King's Ely | ELY Cambridgeshire, CB7 4DB | Map | Website |
| Kingshott Preparatory School | HITCHIN Hertfordshire, SG4 7JX | Map | Website |
| Langley School | NORWICH Norfolk, NR14 6BJ | Map | Website |
| Mill Hill & Belmont Schools | LONDON Middlesex, NW7 1QS | Map | Website |
| New Hall School | CHELMSFORD Essex, CM3 3HS | Map | Website |
| Northgate Primary School | Bishops Stortford Hertfordshire, CM23 2RL | tbc | tbc |
| Norwich School | NORWICH Norfolk, NR1 4DD | Map | Website |
| Old Buckenham Hall School | IPSWICH Suffolk, IP7 7PH | Map | Website |
| Orwell Park School | IPSWICH Suffolk, IP10 0ER | Map | Website |
| Oundle School | PETERBOROUGH Northamptonshire, PE8 4GH | Map | Website |
| Queenswood School | HATFIELD Hertfordshire, AL9 6NS | Map | Website |
| RGS Worcester | WORCESTER Worcestershire, WR1 1HP | Map | Website |
| Royal Hospital School | IPSWICH Suffolk, IP9 2RX | Map | Website |
| Saffron Walden County High School | SAFFRON WALDEN Essex, CB11 4UH | Map | Website |
| Sevenoaks School | SEVENOAKS Kent, TN13 1HU | Map | Website |
| Southend High School for Boys | SOUTHEND-ON-SEA Essex, SS0 0RG | Map | Website |
| Spratton Hall School | NORTHAMPTON Northamptonshire, NN6 8HP | Map | Website |
| St Albans School | ST ALBANS Hertfordshire, AL3 4HB | Map | Website |
| St Anthony's School for Boys | LONDON Middlesex, NW3 6NP | Map | Website |
| St Cedd's School | CHELMSFORD Essex, CM2 0AR | Map | Website |
| St Clere's School | STANFORD-LE-HOPE Essex, SS17 0NW | Map | Website |
| St Edmund's College, Ware | WARE Hertfordshire, SG11 1DS | Map | Website |
| St Faith's School | CAMBRIDGE Cambridgeshire, CB2 8AG | Map | Website |
| St John's College School | CAMBRIDGE Cambridgeshire, CB3 9AB | Map | Website |
| St John's School, Leatherhead | LEATHERHEAD Surrey, KT22 8SP | Map | Website |
| St Joseph's College, Ipswich | IPSWICH Suffolk, IP2 9DR | Map | Website |
| Stamford | STAMFORD Lincolnshire, PE9 2BS | Map | Website |
| Stephen Perse Foundation | CAMBRIDGE Cambridgeshire, CB2 1HF | Map | Website |
| Terrington Hall School | TERRINGTON Yorkshire, YO60 6PR | Map | Website |
| The Haberdashers' Aske's Boys' School | ELSTREE Hertfordshire, WD6 3AF | Map | Website |
| The Independent Association of Prep Schools - IAPS | LEAMINGTON SPA Warwickshire, CV32 5LA | Map | Website |
| The Leys School | CAMBRIDGE Cambridgeshire, CB2 7AD | Map | Website |
| The Perse School | CAMBRIDGE Cambridgeshire, CB2 8QF | Map | Website |
| Watford Grammar School for Boys | WATFORD Hertfordshire, WD18 7JF | Map | Website |
| Wellington College | CROWTHORNE Berkshire, RG45 7PU | Map | Website |
| West Hill Park School | TITCHFIELD Hampshire, PO14 4BS | Map | Website |
| Westbourne House School | CHICHESTER Sussex, PO20 2BH | Map | Website |
| Westbrook Hay Preparatory School | HEMEL HEMPSTEAD Hertfordshire, HP1 2RF | Map | Website |
| York House School | RICKMANSWORTH Hertfordshire, WD3 4LW | Map | Website |
