| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BUTTERFLY CONSERVATION | 02206468 | 12/11/2022 | Gold |
| WILDLIFE AND COUNTRYSIDE LINK | 03889519 | 03/12/2018 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| FRESHWATER HABITATS TRUST | 05317683 | 16/12/2005 | 08/01/2008 | Gold |
| FUTURE NATURE WTC LTD | 02648728 | 09/02/1998 | 03/05/2002 | Not Trading |
| FUTURE NATURE WTC LTD | 02648728 | 25/09/1991 | 15/12/2000 | Not Trading |
| MARINE CONSERVATION SOCIETY | 02550966 | 14/09/2010 | 11/11/2015 | Amber |
| THE VEOLIA ENVIRONMENTAL TRUST | 03419138 | 28/04/2004 | 16/07/2012 | Gold |
| The Environmental Trust for Berkshire Ltd | 03413924 | 04/08/1997 | 01/10/2002 | Dissolved |
| UK OVERSEAS TERRITORIES CONSERVATION FORUM | 03216892 | 22/12/2016 | 01/03/2018 | Gold |
| WETLANDS ADVISORY SERVICE LIMITED | 03050829 | 19/01/2004 | 11/05/2020 | Bronze |
| WILDFOWL & WETLANDS TRUST (CONSULTING) LIMITED | 02277255 | 30/04/2004 | 11/05/2020 | Silver |
| WILDFOWL AND WETLANDS TRUST (TRADING) LIMITED | 02541350 | 19/01/2004 | 13/09/2016 | One Red Flag |
| WILDFOWL TRUST (HOLDINGS) LIMITED | 00587114 | 01/03/2004 | 11/05/2020 | Amber |
| WILDLIFE AND COUNTRYSIDE LINK | 03889519 | 15/04/2005 | 17/08/2006 | Gold |