| CLARK, Diana Gillian ACTIVE | Secretary | 11 Feb 2008 | | | | The Nature Centre, Fountain Road Tondu, Bridgend, CF32 0EH |
| BAIN, Stuart Mark ACTIVE | Director | 08 Jun 2021 | | Wales | June 1977 | The Nature Centre, Fountain Road Tondu, Bridgend, CF32 0EH |
| HUGHES, Jenny, Dr ACTIVE | Director | 12 Dec 2023 | | Wales | May 1962 | The Nature Centre, Fountain Road Tondu, Bridgend, CF32 0EH |
| KESSELL, Sarah Louise ACTIVE | Director | 15 Sep 2012 | | Wales | January 1970 | The Nature Centre, Fountain Road Tondu, Bridgend, CF32 0EH |
| TUSA, John Hugh Alexander ACTIVE | Director | 20 Jun 2017 | | England | July 1962 | The Nature Centre, Fountain Road Tondu, Bridgend, CF32 0EH |
| BROOKS, Margaret RESIGNED | Secretary | 22 Nov 1996 | 15 Jan 1999 | | | Dyfed Wildlife Trust 7 Market Street, Haverfordwest, Dyfed, SA61 1NF |
| SAUNDERS, David Raymond RESIGNED | Secretary | 01 Apr 1992 | 30 Sep 1996 | | | Woosung Pointfields, Hakin, Milford Haven, Pembrokeshire, SA73 3EB |
| SNOW, Michael Henry Lloyd RESIGNED | Secretary | 27 Feb 1999 | 01 Feb 2008 | | | Blaencoed, Eglwyswrw, Crymych, Dyfed, SA41 3ST |
| SWIFT INCORPORATIONS LIMITED RESIGNED | Nominee Secretary | 01 Apr 1992 | 01 Jun 1992 | | | 26, Church Street, London, NW8 8EP |
| AGNEW, Andrew David Quentin, Dr RESIGNED | Director | 22 Nov 1997 | 24 Jul 2003 | United Kingdom | December 1929 | Garth House, Furnace, Machynlleth, Powys, SY20 8PG |
| ANDERSON, (Nikki) Angela Barbara RESIGNED | Director | 15 Nov 2010 | 15 Sep 2012 | Wales | December 1947 | The Nature Centre, Fountain Road Tondu, Bridgend, CF32 0EH |
| BOSSOM, Peter Emery RESIGNED | Director | 23 Aug 1994 | 30 Sep 1996 | | December 1928 | Penrallt House, Llechryd, Cardigan, Dyfed, SA43 2QH |
| BRIAN, John Mark Vincent RESIGNED | Director | 20 Jul 2018 | 05 Sep 2023 | Wales | July 1954 | The Nature Centre, Fountain Road Tondu, Bridgend, CF32 0EH |
| BUNNEY, Michael Allan RESIGNED | Director | 22 Jan 2011 | 17 Sep 2013 | Wales | April 1946 | The Nature Centre, Fountain Road Tondu, Bridgend, CF32 0EH |
| DONOVAN, Jack William RESIGNED | Director | 23 May 1997 | 28 Oct 1997 | | March 1928 | 5 Dingle Road, Crundale, Haverfordwest, Dyfed, SA62 4DJ |
| ELLIOTT, Ronald Frederick RESIGNED | Director | 31 Jan 1997 | 27 Feb 1999 | | February 1938 | 10 Flemish Court, Lamphey, Pembroke, Dyfed, SA71 5PA |
| GALE, John Hamilton RESIGNED | Director | 10 Feb 2014 | 01 Apr 2019 | Wales | June 1938 | The Nature Centre, Fountain Road Tondu, Bridgend, CF32 0EH |
| GARRETT, Morgan Richards RESIGNED | Director | 01 Apr 1992 | 04 Nov 1993 | | August 1921 | Longleat Johnston, Haverfordwest, Pembrokeshire, SA62 3HL |
| HEAL, Thomas John RESIGNED | Director | 23 Aug 1994 | 30 Sep 1996 | | September 1915 | Ynys Y Rhyd Farm, Pont Ynyswen, Carmarthen, Dyfed, SA32 7PH |
| HICKLING, Lynda Mary RESIGNED | Director | 13 Oct 2008 | 15 Sep 2012 | Wales | February 1951 | Honeystone, Church Lane, East Williamston, Tenby, Pembrokeshire, SA70 8RT |
| HOWELLS, Richard William George RESIGNED | Director | 19 Feb 1999 | 24 Jul 2003 | | August 1938 | Sefton Furzy Hill, Hook, Haverfordwest, Pembrokeshire, SA62 4ND |
| HUNTER, Peter Gerald RESIGNED | Director | 10 Feb 2014 | 20 Jul 2018 | Wales | December 1947 | The Nature Centre, Fountain Road Tondu, Bridgend, CF32 0EH |
| IZZARD, Anne RESIGNED | Director | 01 Apr 2004 | 13 Oct 2008 | | October 1952 | 230 Alwold Road, Weoley Castle, Birmingham, West Midlands, B29 5JS |
| KINGZETT, Brian RESIGNED | Director | 22 Nov 1997 | 17 Feb 1999 | | December 1932 | 3 Llys Ffynnon, Fountain Hall, Carmarthen, Carmarthenshire, SA31 1RQ |
| MOORE, Derek RESIGNED | Director | 24 Jul 2003 | 31 Jul 2006 | | January 1943 | Rowan Howe Gors Road, Salem, Llandeilo, Carmarthenshire, SA19 7LY |
| NICOLLE, Philip David, Dr RESIGNED | Director | 24 Jul 2003 | 13 Oct 2008 | | March 1963 | Basement Flat Derutzen, Market Street, Narbeth, Pembrokeshire, SA67 7AX |
| PHILIPPS, Colwyn Jestyn John, The Right Honourable Viscount St. Davids RESIGNED | Director | 22 Nov 1996 | 20 Jul 1997 | | January 1939 | The Manor House, 14 Alwyne Place, London, N1 2NL |
| SAUNDERS, David Raymond RESIGNED | Director | 01 Apr 1992 | 23 Aug 1994 | | December 1937 | Woosung Pointfields, Hakin, Milford Haven, Pembrokeshire, SA73 3EB |
| SHERMAN, Rhoslyn RESIGNED | Director | 22 Jan 2011 | 15 May 2014 | Wales | September 1976 | The Nature Centre, Fountain Road Tondu, Bridgend, CF32 0EH |
| STACEY, David John RESIGNED | Director | 23 Aug 1994 | 30 Sep 1996 | Wales | January 1953 | Mullach Mor Mill Pond Lane, Llanstephan, Carmarthen, Dyfed, SA33 5LG |
| TURNER, Roger Maxwell RESIGNED | Director | 13 Oct 2008 | 12 Aug 2009 | United Kingdom | August 1941 | The Bells Narberth Road, Tenby, Dyfed, SA70 8TH |