| Aylesbury Grammar School | AYLESBURY Buckinghamshire, HP21 7RP | Map | Website |
| Bedford Modern School | BEDFORD Bedfordshire, MK41 7NT | Map | Website |
| Caterham School | CATERHAM Surrey, CR3 6YA | Map | Website |
| Claremont Fan Court School | ESHER Surrey, KT10 9LY | Map | Website |
| Coopers' Company & Coborn School | UPMINSTER Essex, RM14 3HS | Map | Website |
| Katherine Warington School | HARPENDEN Hertfordshire, AL5 5FH | tbc | Website |
| Lady Eleanor Holles | HAMPTON Middlesex, TW12 3HF | 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 |
| North London Collegiate School | EDGWARE Middlesex, HA8 7RJ | Map | Website |
| Putney High School | LONDON Surrey, SW15 6BH | Map | Website |
| Queen Anne's School | READING Berkshire, RG4 6DX | Map | Website |
| Richard Hale School | HERTFORD Hertfordshire, SG13 8EN | Map | Website |
| Roundwood Park School | HARPENDEN Hertfordshire, AL5 3AE | Map | Website |
| Sandringham School | ST ALBANS Hertfordshire, AL4 9NX | 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 Benedict's School | LONDON Middlesex, W5 2ES | Map | Website |
| St Catherine's School | BRAMLEY Surrey, GU5 0DF | Map | Website |
| St Columba's College | ST ALBANS Hertfordshire, AL3 4AW | Map | Website |
| St Edmund's College, Ware | WARE Hertfordshire, SG11 1DS | Map | Website |
| Tiffin School | KINGSTON-UPON-THAMES Surrey, KT2 6RL | Map | Website |
| Townsend CofE School | ST ALBANS Hertfordshire, AL3 6DR | Map | Website |
| Verulam School | ST ALBANS Hertfordshire, AL1 4PR | Map | Website |
| Walthamstow Hall | SEVENOAKS Kent, TN13 3UL | Map | Website |
| Watford Grammar School for Boys | WATFORD Hertfordshire, WD18 7JF | Map | Website |
| Wycombe Abbey | HIGH WYCOMBE Buckinghamshire, HP11 1PE | Map | Website |
