| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| THE OVERSIGHT TRUST-ASSETS FOR THE COMMON GOOD | 07611016 | 24/03/2023 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ABBEY GATEWAY ENTERPRISES LIMITED | 03451049 | 07/11/1997 | 19/06/2010 | Amber |
| CANCER RESEARCH UK | 04325234 | 01/04/2014 | 31/12/2021 | Silver |
| CANCER RESEARCH UK TRADING LIMITED | 04355631 | 17/07/2014 | 31/12/2021 | Amber |
| DRAX GROUP PLC | 05562053 | 01/12/2008 | 17/04/2019 | Silver |
| ERNST & YOUNG LLP | OC300001 | 28/06/2001 | 01/07/2007 | Bronze |
| GARTMORE GROUP LIMITED | FC027672 | 27/11/2009 | 04/04/2011 | Dissolved |
| HARBOUR ENERGY PLC | SC234781 | 17/01/2008 | 17/05/2017 | Silver |
| HELLERMANNTYTON GROUP PLC | 08409650 | 13/03/2013 | 18/12/2015 | Bronze |
| ST ALBANS SCHOOL | 04400125 | 29/08/2003 | 19/06/2010 | Gold |
| ST ALBANS SCHOOL WOOLLAM TRUSTEE COMPANY | 05889116 | 20/06/2009 | 19/06/2010 | Not Trading |
| THE BM CO PENSION TRUSTEE COMPANY LIMITED | 04901380 | 15/09/2006 | 16/03/2015 | Not Trading |
| THE BRITISH MUSEUM COMPANY LIMITED | 01079888 | 18/11/2005 | 07/06/2012 | Gold |
| THE BRITISH MUSEUM FRIENDS | 04133346 | 08/11/2004 | 05/11/2008 | Amber |