| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARON EVER-GRIP LIMITED | 00610113 | 07/05/1995 | 24/04/1997 | Dissolved |
| AUSTRALIA DAY FOUNDATION LIMITED | 04986599 | 21/09/2006 | 13/08/2022 | Silver |
| AUSTRALIAN BUSINESS | 01974245 | 27/10/2005 | 14/07/2014 | Gold |
| AVEVA GROUP LIMITED | 02937296 | 01/05/2012 | 18/01/2023 | Bronze |
| AVEVA SOLUTIONS LIMITED | 00803680 | 01/05/2012 | 09/10/2019 | Silver |
| BALFOUR BEATTY PLC | 00395826 | 26/03/2015 | 31/07/2021 | Silver |
| BHP BILLITON GROUP LIMITED | 03298904 | 20/05/2002 | 31/12/2006 | Amber |
| BHP BILLITON PETROLEUM GREAT BRITAIN LIMITED | 00810819 | 01/11/2001 | 26/04/2006 | Silver |
| ESSAR ENERGY LIMITED | 07108619 | 06/04/2010 | 19/05/2014 | Bronze |
| INVENSYS INTERNATIONAL HOLDINGS LIMITED | 00057410 | 29/11/1995 | 24/04/1997 | Gold |
| KAZ MINERALS LIMITED | 05180783 | 01/11/2006 | 31/08/2013 | Silver |
| NATIONAL GRID PLC | 04031152 | 15/05/2008 | 25/02/2015 | Silver |
| NEW ENERGY ONE ACQUISITION CORPORATION PLC | 13727820 | 07/03/2022 | 15/03/2024 | Bronze |
| ROBERT WALTERS PLC | 03956083 | 13/07/2000 | 15/10/2012 | Silver |
| SLOANE RESIDENTS LIMITED | 01174098 | 24/01/2005 | 21/10/2017 | Silver |
| WEC SERVICES LIMITED | 04236035 | 20/10/2001 | 31/10/2004 | Gold |
| WORLD ENERGY COUNCIL | 04184478 | 20/10/2001 | 31/10/2004 | One Red Flag |