| DOLE, Emlyn ACTIVE | Director | 25 Jan 2024 | | Wales | October 1956 | Uwtsd, Uwtsd, College Road, Carmarthen, Carmarthenshire, SA31 3EP, Wales |
| EVANS, Elwen Mair ACTIVE | Director | 25 Jan 2024 | | Wales | February 1958 | Uwtsd, Uwtsd, College Road, Carmarthen, Carmarthenshire, SA31 3EP, Wales |
| HARVEY, Anthony Peter ACTIVE | Director | 24 Jan 2006 | | United Kingdom | May 1940 | Oak Cottage, 23 High Street, Welshpool, Powys, SY21 7JP |
| WILLIAMS, Deris Davies ACTIVE | Director | 16 May 2018 | | Wales | August 1958 | Erw Lon, Heol Capel Ifan, Pontyberem, Llanelli, SA15 6HF, Wales |
| BALSOM, Denis Frank, Dr RESIGNED | Secretary | 01 Apr 2008 | 16 Sep 2020 | | | Y Glyn, Llanfarian, Aberystwyth, Dyfed, SY23 4BY |
| BALSOM, Denis Frank, Dr RESIGNED | Secretary | 25 Mar 1997 | 17 Sep 1999 | | | Y Glyn, Llanfarian, Aberystwyth, Dyfed, SY23 4BY |
| CLARK, Sarah RESIGNED | Secretary | 17 Mar 2021 | 31 Aug 2023 | | | Uwtsd, College Road, Carmarthen, SA31 3EP, Wales |
| KEMP, Michael Alan Reginald, Dr RESIGNED | Secretary | 12 Jan 2001 | 31 Mar 2008 | | | 51 Cherry Orchard Road, Lisvane, Cardiff, South Glamorgan, CF14 0UD |
| KEMP, Michael Alan Reginald, Dr RESIGNED | Secretary | | 31 Jul 1993 | | | 51 Cherry Orchard Road, Lisvane, Cardiff, South Glamorgan, CF14 0UD |
| PRITCHARD, Jeffrey David RESIGNED | Secretary | 12 Oct 1993 | 25 Mar 1997 | | | 68 Churchfields, Barry, South Glamorgan, CF63 1FR |
| BALSOM, Denis Frank, Dr RESIGNED | Director | 01 Dec 1995 | 16 Sep 2020 | United Kingdom | September 1948 | Y Glyn, Llanfarian, Aberystwyth, Dyfed, SY23 4BY |
| CAMPBELL, David Niall Macarther RESIGNED | Director | 23 Oct 2002 | 02 May 2012 | United Kingdom | April 1948 | 51 Northumberland Place, London, W2 5AS |
| DOWD, Anthony Thomas RESIGNED | Director | 18 Mar 1994 | 31 Mar 2005 | | May 1927 | Wayside, Hough Lane, Alderley Edge, Cheshire, SK9 7JE |
| GRUFFYDD, Robert Geraint RESIGNED | Director | 03 Dec 1993 | 17 Dec 1999 | | June 1928 | Eiranfa, Caradog Road, Aberystwyth, Dyfed, SY23 3HH |
| HUGHES, Glyn Tegai, Dr RESIGNED | Director | 12 Jan 2001 | 10 Mar 2017 | United Kingdom | January 1923 | Rhyd-Y-Gro, Tregynon, Newtown, Powys, SY16 3PR |
| HUGHES, Medwin, Professor RESIGNED | Director | 16 May 2018 | 13 Oct 2023 | United Kingdom | May 1961 | University Of Wales Trinity St David, College Road, Carmarthen, Wales, SA31 3EP, United Kingdom |
| JONES, Eirlys Pritchard RESIGNED | Director | 16 May 2018 | 01 Sep 2020 | Wales | August 1943 | 27, Pwll Y Myn, Llanbedr Y Fro, Bro Morgannwg, CF5 6LR, Wales |
| JONES, Robert Gerallt RESIGNED | Director | | 16 Oct 1995 | | September 1933 | Gregynog Tregynon, Newtown, Powys, SY16 3PN |
| KEMP, Michael Alan Reginald, Dr RESIGNED | Director | 01 Dec 2009 | 21 Mar 2024 | Wales | October 1935 | 51, Cherry Tree Road, Lisvane, Cardiff, Wales, CF14 0UD, Wales |
| KEMP, Michael Alan Reginald, Dr RESIGNED | Director | | 01 Dec 2009 | Wales | October 1935 | 51 Cherry Orchard Road, Lisvane, Cardiff, South Glamorgan, CF14 0UD |
| KENYON, Lloyd, Lord RESIGNED | Director | | 16 May 1993 | | September 1917 | Cumbers House, Gredington, Whitchurch, Shropshire, SY13 3DH |
| LEWIS, David Gwynder RESIGNED | Director | 12 Jan 2001 | 16 Sep 2020 | United Kingdom | August 1942 | 57 Victoria Road, London, W8 5RH |
| PRITCHARD, Jeffrey David RESIGNED | Director | 12 Oct 1993 | 25 Mar 1997 | | November 1945 | 68 Churchfields, Barry, South Glamorgan, CF63 1FR |
| SUNDERLAND, Eric RESIGNED | Director | | 24 Mar 2010 | Wales | March 1930 | Y Bryn, Ffriddoed Road, Bangor, Gwynedd, LL57 2EH |
| THOMAS, Alfred James Randolph, The Venerable RESIGNED | Director | 16 May 2018 | 31 Dec 2023 | Wales | August 1948 | Llwyncelyn, 10 Clos Y Wennol, Porthrhyd, Carmarthen, SA32 8BD, Wales |
| THOMAS, Meurig Wynn, Professor RESIGNED | Director | 28 Jun 2007 | 13 Dec 2012 | United Kingdom | September 1944 | Banc Yr Eithin, 14 Westcliff, Southgate, Swansea, SA3 2AN |
| WALSH, Ian Martin, Professor RESIGNED | Director | 15 Dec 2019 | 31 Dec 2024 | Wales | January 1966 | Y Gerlan, Heol Maes Pica, Lower Cwmtwrch, Swansea, SA9 2PP, Wales |
| WALTERS, John, Dr RESIGNED | Director | 16 May 2018 | 01 Mar 2019 | Wales | October 1937 | Bryntirion, 3 Clos Cwnin, Carmarthen, SA31 2HN, Wales |
| WILLIAMS, John Gwynn, Professor RESIGNED | Director | | 23 Oct 2002 | | June 1924 | Llywenan, Ffordd Siliwen, Bangor, Gwynedd, LL57 2BS |