| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALBAN TEACHING SCHOOL ALLIANCE LIMITED | 08608649 | 15/07/2013 | Silver |
| ATLAS MULTI ACADEMY TRUST | 07719076 | 02/07/2018 | Silver |
| SCHOLARS' EDUCATION TRUST | 07697132 | 01/12/2016 | Bronze |
| THE KEMNAL ACADEMIES TRUST | 07348231 | 13/10/2020 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| HERTSCAM NETWORK | 08337179 | 19/12/2012 | 24/11/2017 | Dissolved |
| SCHOLARS' EDUCATION TRUST | 07697132 | 01/08/2011 | 20/04/2016 | Bronze |
| THE HARPENDEN SECONDARY SCHOOLS TRUST | 07441455 | 16/11/2010 | 12/12/2022 | Not Trading |
| THE MELLER EDUCATIONAL TRUST | 06933010 | 12/06/2009 | 08/05/2015 | Dissolved |