| Aldenham School | BOREHAMWOOD Hertfordshire, WD6 3AJ | Map | Website |
| Beaumont School | ST ALBANS Hertfordshire, AL4 0XB | Map | Website |
| Bushey Meads School (BMS) | BUSHEY Hertfordshire, WD23 4PA | Map | Website |
| City of London School for Girls | LONDON Middlesex, EC2Y 8BB | Map | Website |
| Croxley Danes School | RICKMANSWORTH Hertfordshire, WD18 9BL | Map | Website |
| Future Academies, Watford | WATFORD England, WD25 7HW | Map | Website |
| Haberdashers' Elstree Schools | ELSTREE Hertfordshire, WD6 3AF | Map | Website |
| Hasmonean High School (Girls site) | LONDON Greater London, NW7 2EU | Map | Website |
| Hemel Hempstead School | HEMEL HEMPSTEAD Hertfordshire, HP1 1TX | Map | Website |
| JFS School | HARROW Middlesex, HA3 9TE | Map | Website |
| Kings Langley School | KINGS LANGLEY Hertfordshire, WD4 9HN | Map | Website |
| Knights Templar School | BALDOCK Hertfordshire, SG7 6DZ | Map | Website |
| Manchester High School for Girls | MANCHESTER Lancashire, M14 6HS | Map | Website |
| Merchant Taylors' School, Northwood | NORTHWOOD Middlesex, HA6 2HT | Map | Website |
| Parmiter's School | WATFORD Hertfordshire, WD25 0UU | Map | Website |
| Queens School | WATFORD Hertfordshire, WD23 2TY | Map | Website |
| Rickmansworth School | RICKMANSWORTH Hertfordshire, WD3 3AQ | Map | Website |
| Robert Barclay Academy | HODDESDON Hertfordshire, EN11 8JY | Map | Website |
| St Albans School | ST ALBANS Hertfordshire, AL3 4HB | Map | Website |
| St Clement Danes School | CHORLEYWOOD Hertfordshire, WD3 6EW | Map | Website |
| St Edmund's College, Ware | WARE Hertfordshire, SG11 1DS | Map | Website |
| St Joan of Arc Catholic School | RICKMANSWORTH Hertfordshire, WD3 1HG | Map | Website |
| St Margaret's School, Bushey | BUSHEY Hertfordshire, WD23 1DT | Map | Website |
| The Grange Academy | BUSHEY Hertfordshire, WD23 3AA | Map | Website |
| The Reach Free School | TOLPITS LANE Hertfordshire, WD18 9BL | Map | Website |
| The Royal Masonic School for Girls | RICKMANSWORTH Hertfordshire, WD3 4HF | Map | Website |
| Thomas Alleyne School | STEVENAGE Hertfordshire, SG1 3BE | Map | Website |
| Thorpe House School | GERRARDS CROSS Buckinghamshire, SL9 8QA | 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 |
| Watford Grammar School for Girls | WATFORD Hertfordshire, WD18 0AE | Map | Website |
| Westbrook Hay School | HEMEL HEMPSTEAD Hertfordshire, HP1 2RF | Map | Website |
| Westfield Academy | WATFORD Hertfordshire, WD18 6NS | Map | Website |
