| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Commission for Architecture & The Built Environment | 03831652 | 15/12/2000 | Dissolved |
| GARDEN BRIDGE TRUST | 08755461 | 30/10/2013 | Dissolved |
| LIGHTSTONE BECKENHAM LLP | OC448890 | 29/09/2023 | Bronze |
| P S W Projects Ltd | 01368404 | 23/11/1999 | Dissolved |
| THE DANCERS' STUDIO TRUST | 04683843 | 24/06/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AECOM PROFESSIONAL SERVICES LLP | OC306911 | 30/04/2004 | 30/04/2007 | Gold |
| BRISTOL OLD VIC AND THEATRE ROYAL TRUST LIMITED | 00756007 | 13/02/2013 | 15/01/2020 | Silver |
| BRITISH ACADEMY OF FILM AND TELEVISION ARTS (THE) | 00617869 | 06/10/2015 | 14/09/2021 | Silver |
| BRITISH COUNCIL FOR OFFICES | 02498018 | 14/07/1999 | 15/07/2008 | Bronze |
| DAVIS LANGDON 2004 LIMITED | 02519561 | 30/04/1993 | 01/07/2007 | Not Trading |
| DAVIS LANGDON SERVICES | 02864831 | 21/10/1993 | 30/04/2007 | Dissolved |
| DEBEANDE SERVICES LIMITED | 01494347 | 06/02/1991 | 01/02/2009 | Dissolved |
| DEGW PLC | 04176007 | 28/07/2008 | 31/07/2009 | Dissolved |
| ROYAL OPERA HOUSE COVENT GARDEN FOUNDATION | 00480523 | 01/08/2016 | 25/08/2024 | Gold |
| RSC ESTATES LIMITED | 06977192 | 16/09/2009 | 25/10/2013 | Amber |
| SCHOOL WORKS LIMITED | 04215493 | 11/05/2001 | 01/10/2009 | Dissolved |
| SIOBHAN DAVIES DANCE COMPANY | 02701923 | 04/12/2002 | 30/11/2017 | Silver |