| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ASHDEN CLIMATE SOLUTIONS | 05062574 | 01/09/2020 | Gold |
| Acap Advisers Ltd | 05134513 | 25/02/2005 | Dissolved |
| Tree Court Advisers Ltd | 03667096 | 23/03/1999 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACTIS LLP | OC305927 | 13/04/2004 | 31/01/2008 | Silver |
| BRENTSIDE COMMUNICATIONS LIMITED | 01991595 | 12/07/1996 | 16/10/1996 | Not Trading |
| BRITISH INTERNATIONAL INVESTMENT PLC | 03877777 | 17/01/2001 | 08/07/2004 | Gold |
| CAIUS HOUSE | 06758923 | 23/12/2012 | 01/12/2023 | Bronze |
| CREDIT SUISSE ASSET MANAGEMENT LIMITED | 01688075 | 10/02/1995 | 30/06/1995 | Silver |
| EMPOWER ADVISORS LIMITED | 06361078 | 26/11/2007 | 12/12/2007 | Dissolved |
| ENERGY 4 IMPACT | 05762919 | 24/06/2013 | 31/12/2015 | Silver |
| INTER-CITY PAGING LIMITED | 01643672 | 12/07/1996 | 16/10/1996 | Dissolved |
| STEAMA COMPANY LIMITED | 08081185 | 10/07/2017 | 16/07/2019 | Amber |
| WWF-UK | 04016725 | 01/09/2012 | 16/12/2015 | Silver |
| Westpark House Holdings Ltd | 03162843 | 12/07/1996 | 16/10/1996 | Dissolved |