| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HAMMERSMITH ACADEMY TRUST | 06397195 | 01/09/2018 | Silver |
| NATIONAL PHILANTHROPIC TRUST UK LIMITED | 11542102 | 29/08/2018 | Silver |
| ST. PAUL'S SCHOOL | 06141973 | 09/01/2020 | Silver |
| SYRACUSE UNIVERSITY (USA) LONDON PROGRAM | 04270952 | 28/07/2004 | Silver |
| SYRACUSE UNIVERSITY (USA) LONDON PROGRAM | 04270952 | 15/08/2001 | Silver |
| THE BRUCE CHURCH CHARITABLE TRUST LIMITED | 06425948 | 13/11/2007 | Dissolved |
| THE CLOSE FILM SALE AND LEASEBACK (2004/5) LLP | OC306215 | 05/04/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BUTE HOUSE PREPARATORY SCHOOL FOR GIRLS LIMITED | 00571803 | 16/06/1997 | 15/12/2015 | Gold |
| DO WELL FOUNDATION LIMITED | 04131417 | 20/12/2000 | 31/03/2022 | One Red Flag |
| NPT TRANSATLANTIC LIMITED | 08612103 | 16/07/2013 | 30/09/2014 | Silver |
| PHILANTHROPY IMPACT | 03625777 | 01/10/2007 | 01/12/2014 | Bronze |
| ROSSLYN FILM PARTNERSHIP LLP | OC305876 | 29/03/2005 | 24/06/2015 | Dissolved |
| SYRACUSE UNIVERSITY (USA) LONDON PROGRAM | 04270952 | 15/08/2001 | 16/10/2001 | Silver |
| THE EAST RIDING FOUNDATION LIMITED | 03834562 | 26/08/1999 | 15/10/2002 | Amber |
| UNIVERSITY OF PENNSYLVANIA (USA) FOUNDATION LIMITED | 04395455 | 15/03/2002 | 07/08/2024 | Silver |
| WITHERS LLP | OC301149 | 22/03/2004 | 30/06/2019 | Bronze |
| WITHERS PROFESSIONAL SERVICES LIMITED | 06871262 | 06/04/2009 | 30/06/2019 | Bronze |
| WITHERS TRUST CORPORATION LIMITED | 03697358 | 27/09/2010 | 30/06/2019 | Silver |
| WITHERSWORLDWIDE LLP | OC383688 | 06/04/2014 | 30/06/2019 | Not Trading |