| Adeyfield School | HEMEL HEMPSTEAD Hertfordshire, HP2 4DE | Map | Website |
| Aldwickbury School | HARPENDEN Hertfordshire, AL5 1AD | Map | Website |
| Aylesbury Grammar School | AYLESBURY Buckinghamshire, HP21 7RP | Map | Website |
| Beaumont School | ST ALBANS Hertfordshire, AL4 0XB | Map | Website |
| Bedford Academy | BEDFORD Bedfordshire, MK42 9TR | Map | Website |
| Bedford Modern School | BEDFORD Bedfordshire, MK41 7NT | Map | Website |
| Beechwood Park School | ST ALBANS Hertfordshire, AL3 8AW | Map | Website |
| Berkhamsted School | BERKHAMSTED Hertfordshire, HP4 2BB | Map | Website |
| Bernards Heath Junior School | St Albans Hertfordshire, AL3 5HP | tbc | tbc |
| Bishop Stopford's School | ENFIELD Middlesex, EN1 3PU | Map | Website |
| Chauncy School | WARE Hertfordshire, SG12 0DP | Map | Website |
| Chesham Preparatory School | CHESHAM Buckinghamshire, HP5 3QF | Map | Website |
| Copleston High School | IPSWICH Suffolk, IP4 5HD | Map | Website |
| Culford School | BURY ST EDMUNDS Suffolk, IP28 6TX | Map | Website |
| Dame Alice Owens School | POTTERS BAR Hertfordshire, EN6 2DU | Map | Website |
| Edge Grove | ALDENHAM VILLAGE Hertfordshire, WD25 8NL | Map | Website |
| Epsom College | EPSOM Surrey, KT17 4JQ | Map | Website |
| Fleetville Junior School | St Albans Hertfordshire, AL1 4LW | tbc | tbc |
| Garden Fields Junior Mixed and Infant School | St Albans Hertfordshire, AL3 5RL | tbc | tbc |
| Haberdashers' Elstree Schools | ELSTREE Hertfordshire, WD6 3AF | Map | Website |
| Haileybury | HERTFORD Hertfordshire, SG13 7NU | 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 |
| Katherine Warington School | HARPENDEN Hertfordshire, AL5 5FH | tbc | Website |
| Kimbolton School | HUNTINGDON Cambridgeshire, PE28 0EA | Map | Website |
| Kingshott Preparatory School | HITCHIN Hertfordshire, SG4 7JX | Map | Website |
| Knights Templar School | BALDOCK Hertfordshire, SG7 6DZ | Map | Website |
| Latymer Upper School | LONDON Greater London, W6 9LR | Map | Website |
| Lochinver House School | POTTERS BAR Hertfordshire, EN6 1LW | Map | Website |
| Lockers Park School | HEMEL HEMPSTEAD Hertfordshire, HP1 1TL | Map | Website |
| Longdean School | HEMEL HEMPSTEAD Hertfordshire, HP3 8JB | Map | Website |
| Loreto College | ST ALBANS Hertfordshire, AL1 3RQ | Map | Website |
| Manor Lodge School | SHENLEY Hertfordshire, WD7 9BG | Map | Website |
| Maple School | St Albans Hertfordshire, AL1 3SW | tbc | tbc |
| Merchant Taylors' Prep | RICKMANSWORTH Hertfordshire, WD3 1LW | Map | Website |
| Merchant Taylors' School, Northwood | NORTHWOOD Middlesex, HA6 2HT | Map | Website |
| Mill Hill & Belmont Schools | LONDON Middlesex, NW7 1QS | Map | Website |
| Nicholas Breakspear Catholic School | ST ALBANS Hertfordshire, AL4 0TT | Map | Website |
| Oasis Academy Enfield | ENFIELD Middlesex, EN3 7XH | Map | Website |
| Onslow St Audrey's School | HATFIELD Hertfordshire, AL10 8AB | Map | Website |
| Orley Farm School | HARROW-ON-THE-HILL Middlesex, HA1 3NU | Map | Website |
| Prae Wood Primary School | St Albans Hertfordshire, AL3 4HZ | tbc | tbc |
| Queen Elizabeth's School, Barnet | BARNET Hertfordshire, EN5 4DQ | Map | Website |
| Queens School | WATFORD Hertfordshire, WD23 2TY | Map | Website |
| Redbourn Junior School | St Albans Hertfordshire, AL3 7EX | tbc | tbc |
| Reddam House School | WOKINGHAM Berkshire, RG41 5BG | Map | Website |
| Richard Hale School | HERTFORD Hertfordshire, SG13 8EN | Map | Website |
| Ridgeway Academy | WELWYN GARDEN CITY Hertfordshire, AL7 2AF | Map | Website |
| Roundwood Park School | HARPENDEN Hertfordshire, AL5 3AE | Map | Website |
| Salvatorian College | HARROW WEALD Middlesex, HA3 5DY | Map | Website |
| Samuel Ryder Academy | ST ALBANS Hertfordshire, AL1 5AR | Map | Website |
| Sandringham School | ST ALBANS Hertfordshire, AL4 9NX | Map | Website |
| Sir John Lawes School | HARPENDEN Hertfordshire, AL5 4QP | Map | Website |
| Skyswood Primary School | ST ALBANS Hertfordshire, AL4 9RS | Map | Website |
| St Adrian RC Catholic School | ST ALBANS Hertfordshire, AL1 2PB | Map | Website |
| St Albans High School for Girls | ST ALBANS Hertfordshire, AL1 3SJ | Map | Website |
| St Albans School | ST ALBANS Hertfordshire, AL3 4HB | Map | Website |
| St Aloysius' College | LONDON Middlesex, N6 5LY | Map | Website |
| St Benedict's School | LONDON Middlesex, W5 2ES | Map | Website |
| St Edmund's College, Ware | WARE Hertfordshire, SG11 1DS | Map | Website |
| St George's School, Harpenden | HARPENDEN Hertfordshire, AL5 4TD | Map | Website |
| St Joseph's College, Ipswich | IPSWICH Suffolk, IP2 9DR | 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 Paul's School | LONDON Middlesex, SW13 9JT | Map | Website |
| The John Lyon School | HARROW Middlesex, HA2 0HN | Map | Website |
| The Lammas School | LONDON Essex, E10 7LX | Map | Website |
| The Marlborough Science Academy | ST ALBANS Hertfordshire, AL1 2QA | Map | Website |
| The Perse School | CAMBRIDGE Cambridgeshire, CB2 8QF | Map | Website |
| The Totteridge Academy | LONDON Greater London, N20 8AZ | Map | Website |
| Townsend CofE School | ST ALBANS Hertfordshire, AL3 6DR | Map | Website |
| Trinity School, Croydon | CROYDON Surrey, CR9 7AT | Map | Website |
| University College School (UCS) | LONDON Middlesex, NW3 6XH | Map | Website |
| Verulam School | ST ALBANS Hertfordshire, AL1 4PR | Map | Website |
| Westbrook Hay Preparatory School | HEMEL HEMPSTEAD Hertfordshire, HP1 2RF | Map | Website |
| Westminster School | LONDON Middlesex, SW1P 3PF | Map | Website |
| Wheatfields Junior Mixed School | St Albans Hertfordshire, AL4 9NT | tbc | tbc |
| William Ellis School | LONDON Middlesex, NW5 1RN | Map | Website |
| York House School | RICKMANSWORTH Hertfordshire, WD3 4LW | Map | Website |
