| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BEACHENDON PUBLICATIONS LIMITED | 03508807 | 06/02/1998 | Amber |
| FIVE ARROWS LIMITED | 00062983 | 06/01/2011 | Bronze |
| RIT CAPITAL PARTNERS PLC | 02129188 | 15/08/2013 | Silver |
| ROTHSCHILD AND DAUGHTERS LIMITED | 09804899 | 19/07/2021 | Silver |
| THE JAZZ BARONESS LIMITED | 05413028 | 04/04/2005 | Dissolved |
| THE REAL LPBM LIMITED | 07145257 | 03/02/2010 | Dissolved |
| THE ROTHSCHILD FOUNDATION | 07350078 | 25/05/2011 | Silver |
| WADDESDON ESTATES LLP | OC431753 | 20/08/2020 | Silver |
| WINDMILL HILL ASSET MANAGEMENT LIMITED | 03382235 | 01/01/2013 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CLIFTON NURSERIES (HOLDINGS) LIMITED | 00480603 | 01/05/2005 | 08/05/2006 | Gold |
| CLIFTON NURSERIES LIMITED | 00697600 | 01/05/2005 | 08/05/2006 | Bronze |
| CREATIVE INDUSTRIES FEDERATION | 08793599 | 21/05/2015 | 03/06/2015 | Amber |
| ICA ENTERPRISES LIMITED | 01461527 | 14/04/2008 | 29/10/2008 | Silver |
| INSTITUTE OF CONTEMPORARY ARTS LIMITED | 00444351 | 14/05/2007 | 29/10/2008 | Bronze |
| J ROTHSCHILD CAPITAL MANAGEMENT LIMITED | 02201053 | 01/04/2012 | 30/09/2013 | Gold |
| ROTHSCHILD WADDESDON LIMITED | 02565999 | 06/12/1992 | 08/03/2021 | Silver |
| THE NGT FOUNDATION | 03444689 | 29/10/2015 | 16/10/2018 | Gold |
| WADDESDON GARDENS LIMITED | 02240744 | 01/05/2005 | 08/05/2006 | Dissolved |