| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ST DUNSTAN'S EDUCATION GROUP | 14407568 | 10/10/2022 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BERKHAMSTED SCHOOLS GROUP | 00622349 | 08/08/2011 | 20/09/2016 | Gold |
| GABBITAS, TRUMAN AND THRING EDUCATIONAL TRUST | 00665963 | 22/01/2008 | 18/07/2012 | Not Trading |
| HABERDASHERS' ASKE'S ELSTREE SCHOOLS LIMITED | 09216357 | 06/11/2014 | 01/09/2020 | Not Trading |
| Iscis London & South East | 04990106 | 22/01/2004 | 06/12/2006 | Dissolved |
| RADNOR HOUSE SCHOOL (HOLDINGS) LIMITED | 07337385 | 30/04/2015 | 30/06/2015 | Bronze |
| REIGATE GRAMMAR SCHOOL | 03954365 | 25/03/2002 | 22/06/2009 | Silver |
| SINCE 9/11 | 07230819 | 11/11/2010 | 21/04/2015 | Silver |
| THE ASSOCIATION OF GOVERNING BODIES OF INDEPENDENT SCHOOLS | 05217162 | 11/03/2014 | 12/03/2020 | Bronze |
| THE GIRLS' SCHOOLS ASSOCIATION | 02403333 | 01/01/2003 | 01/01/2006 | Silver |
| UNIVERSITY OF BRIGHTON ACADEMIES TRUST | 07185046 | 18/05/2011 | 31/12/2013 | Silver |