| Aldenham School | BOREHAMWOOD Hertfordshire, WD6 3AJ | Map | Website |
| Ardingly College | HAYWARDS HEATH Sussex, RH17 6SQ | Map | Website |
| Berkhamsted School | BERKHAMSTED Hertfordshire, HP4 2BB | Map | Website |
| Bushey Meads School (BMS) | BUSHEY Hertfordshire, WD23 4PA | Map | Website |
| Croxley Danes School | RICKMANSWORTH Hertfordshire, WD18 9BL | Map | Website |
| Dame Alice Owens School | POTTERS BAR Hertfordshire, EN6 2DU | Map | Website |
| Gayhurst School | GERRARDS CROSS Buckinghamshire, SL9 8RJ | Map | Website |
| Haberdashers' Aske's School for Girls | ELSTREE Hertfordshire, WD6 3BT | Map | Website |
| Haberdashers' Boys' School | ELSTREE Hertfordshire, WD6 3AF | Map | Website |
| Haileybury | HERTFORD Hertfordshire, SG13 7NU | Map | Website |
| Immanuel College | BUSHEY Hertfordshire, WD23 4EB | Map | Website |
| Parmiter's School | WATFORD Hertfordshire, WD25 0UU | Map | Website |
| Queen Elizabeth's School, Barnet | BARNET Hertfordshire, EN5 4DQ | Map | Website |
| Queens School | WATFORD Hertfordshire, WD23 2TY | Map | Website |
| Queenswood School | HATFIELD Hertfordshire, AL9 6NS | Map | Website |
| Reigate Grammar School | REIGATE Surrey, RH2 0QS | Map | Website |
| Rickmansworth School | RICKMANSWORTH Hertfordshire, WD3 3AQ | Map | Website |
| St Clement Danes School | CHORLEYWOOD Hertfordshire, WD3 6EW | Map | Website |
| St Columba's College | ST ALBANS Hertfordshire, AL3 4AW | Map | Website |
| St Helen's School | NORTHWOOD Middlesex, HA6 3AS | Map | Website |
| St Hilda's School | BUSHEY Hertfordshire, WD23 3DA | Map | Website |
| St Ivo School | ST IVES Cambridgeshire, PE27 6RR | 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 |
| St Martin's School, Northwood | NORTHWOOD Middlesex, HA6 2DJ | Map | Website |
| St Michael's Catholic High School | WATFORD Hertfordshire, WD25 0SS | 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 |
| Watford Grammar School for Girls | WATFORD Hertfordshire, WD18 0AE | Map | Website |
| Westbrook Hay Preparatory School | HEMEL HEMPSTEAD Hertfordshire, HP1 2RF | Map | Website |
| Westfield Academy | WATFORD Hertfordshire, WD18 6NS | Map | Website |
| York House School | RICKMANSWORTH Hertfordshire, WD3 4LW | Map | Website |
