| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| SOUTH WEST ENTERPRISE LIMITED | 02773877 | 15/12/1992 | Dissolved |
| TREWITHEN ENERGY LIMITED | 09301463 | 07/11/2014 | Silver |
| The Arkleton Trust (Research) Ltd | 02055367 | 09/06/1991 | Dissolved |
| The Arkleton Trust (Rurtel) Ltd | 02060499 | 09/06/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CORNWALL GARDENS TRUST | 02331942 | 30/04/1992 | 18/10/1993 | Gold |
| Council for Small Industries in Rural Areas | 00928049 | 22/05/1991 | 14/05/1996 | Dissolved |
| DUCHY HEALTH CHARITY LIMITED | 01268926 | 24/09/2001 | 25/11/2009 | Silver |
| Devon & Cornwall Development Co Ltd | 02298370 | 27/07/1992 | 15/07/1993 | Dissolved |
| FARMING AND WILDLIFE ADVISORY GROUP LTD | 01705669 | 17/02/2004 | 27/09/2005 | Dissolved |
| Gaia (Creed) Ltd | 03612798 | 31/07/2001 | 25/11/2002 | Dissolved |
| HAY FARM PRODUCE LLP | OC305482 | 20/02/2004 | 31/01/2012 | Dissolved |
| THE CORNWALL GARDEN SOCIETY | 04504080 | 17/10/2012 | 13/10/2015 | Silver |
| THE GOLDSMITHS' COMPANY CHARITY | 11048746 | 01/04/2018 | 26/09/2023 | Bronze |
| THE GOLDSMITHS' COMPANY TRUSTEE | 07343075 | 22/12/2010 | 14/08/2018 | Dissolved |
| THE MARINE BIOLOGICAL ASSOCIATION (LEGACY MATTERS) LIMITED | 00021401 | 06/04/2001 | 23/04/2004 | Dissolved |