| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Hsh Documentation Solutions Ltd | 03900084 | 24/12/1999 | Dissolved |
| JOMELT LIMITED | 07178431 | 04/03/2010 | Dissolved |
| Jomel Limited | 01670978 | 31/12/1991 | Dissolved |
| Mk Support Services Ltd | 02539986 | 16/09/1996 | Dissolved |
| Mk Support Services Ltd | 02539986 | 18/02/2000 | Dissolved |
| THE OLD BERKHAMSTEDIANS LIMITED | 06786566 | 16/01/2023 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BERKHAMSTED SCHOOL ENTERPRISES LIMITED | 02048201 | 19/06/1993 | 17/06/2002 | Bronze |
| BERKHAMSTED SCHOOLS GROUP | 00622349 | 08/08/2011 | 06/07/2012 | Gold |
| Quayvale Ltd | 01957900 | 25/01/1996 | 21/08/1996 | Dissolved |
| THE OLD BERKHAMSTEDIANS LIMITED | 06786566 | 17/05/2014 | 18/03/2016 | Silver |
| THE OLD BERKHAMSTEDIANS TRUST COMPANY LIMITED | 04373394 | 02/03/2002 | 01/08/2017 | Bronze |