| Aldenham School | BOREHAMWOOD Hertfordshire, WD6 3AJ | Map | Website |
| Aldwickbury School | HARPENDEN Hertfordshire, AL5 1AD | Map | Website |
| Ashlyns School | BERKHAMSTED Hertfordshire, HP4 3AH | Map | Website |
| Beaumont School | ST ALBANS Hertfordshire, AL4 0XB | Map | Website |
| Berkhamsted School | BERKHAMSTED Hertfordshire, HP4 2BB | Map | Website |
| Bishop's Stortford High School | BISHOP'S STORTFORD Hertfordshire, CM23 3LU | Map | Website |
| Cardinal Newman, Luton | LUTON Bedfordshire, LU2 7AE | Map | Website |
| Chancellor's School | HATFIELD Hertfordshire, AL9 7BN | Map | Website |
| Chauncy School | WARE Hertfordshire, SG12 0DP | Map | Website |
| Dame Alice Owens School | POTTERS BAR Hertfordshire, EN6 2DU | Map | Website |
| Edge Grove | ALDENHAM VILLAGE Hertfordshire, WD25 8NL | Map | Website |
| Enfield Grammar School | ENFIELD Middlesex, EN2 6LN | Map | Website |
| Epping St John's School | EPPING Essex, CM16 5JB | Map | Website |
| Goffs Academy | CHESHUNT Hertfordshire, EN7 5QW | tbc | Website |
| Haberdashers' Elstree Schools | ELSTREE Hertfordshire, WD6 3AF | Map | Website |
| Hampton School | HAMPTON Middlesex, TW12 3HD | Map | Website |
| Heath Mount School | HERTFORD Hertfordshire, SG14 3NG | Map | Website |
| Hertswood Academy | BOREHAMWOOD Hertfordshire, WD6 5LG | Map | Website |
| Hitchin Boys' School | HITCHIN Hertfordshire, SG5 1JB | Map | Website |
| John Hampden Grammar School | HIGH WYCOMBE Buckinghamshire, HP11 1SZ | Map | Website |
| John Henry Newman School | STEVENAGE Hertfordshire, SG1 4AE | Map | Website |
| Katherine Warington School | HARPENDEN Hertfordshire, AL5 5FH | tbc | Website |
| Kingsdale Foundation School | LONDON Surrey, SE21 8SQ | Map | Website |
| Nicholas Breakspear Catholic School | ST ALBANS Hertfordshire, AL4 0TT | Map | Website |
| Oaklands College | ST ALBANS Hertfordshire, AL4 0JA | Map | Website |
| Onslow St Audrey's School | HATFIELD Hertfordshire, AL10 8AB | Map | Website |
| Parmiter's School | WATFORD Hertfordshire, WD25 0UU | Map | Website |
| Queens School | WATFORD Hertfordshire, WD23 2TY | Map | Website |
| Queensbury Academy | DUNSTABLE Bedfordshire, LU6 3BU | Map | Website |
| Richard Hale School | HERTFORD Hertfordshire, SG13 8EN | Map | Website |
| Riverside School | DAGENHAM Essex, IG11 0FU | tbc | Website |
| Robert Bloomfield Academy | SHEFFORD Bedfordshire, SG17 5BU | Map | Website |
| Roundwood Park School | HARPENDEN Hertfordshire, AL5 3AE | Map | Website |
| Samuel Ryder Academy | ST ALBANS Hertfordshire, AL1 5AR | Map | Website |
| Sandringham School | ST ALBANS Hertfordshire, AL4 9NX | Map | Website |
| Simon Balle School | HERTFORD Hertfordshire, SG13 8AJ | Map | Website |
| Sir John Lawes School | HARPENDEN Hertfordshire, AL5 4QP | Map | Website |
| St Albans School | ST ALBANS Hertfordshire, AL3 4HB | Map | Website |
| St Clement Danes School | CHORLEYWOOD Hertfordshire, WD3 6EW | Map | Website |
| St Columba's College | ST ALBANS Hertfordshire, AL3 4AW | Map | Website |
| St George's School, Harpenden | HARPENDEN Hertfordshire, AL5 4TD | Map | Website |
| St James Senior Boys' School | ASHFORD Middlesex, TW15 3DZ | Map | Website |
| St Michaels CofE Primary School, St Albans | St Albans Hertfordshire, AL3 4SJ | tbc | tbc |
| The Marlborough Science Academy | ST ALBANS Hertfordshire, AL1 2QA | Map | Website |
| Townsend CofE School | ST ALBANS Hertfordshire, AL3 6DR | Map | Website |
| Tring School | TRING Hertfordshire, HP23 5JD | Map | Website |
