| NICHOLLS, Richard Andrew ACTIVE | Secretary | 31 Jul 2024 | | | | The Corner House, 6 Carmarthen Street, Llandeilo, Dyfed, SA19 6AE, Wales |
| BELL, Carol, Dr ACTIVE | Director | 29 Jan 2024 | | United Kingdom | October 1958 | 194, Bickenhall Street, London, W1U 6BX, England |
| CLUBB, Nigel David ACTIVE | Director | 01 Nov 2023 | | Wales | November 1949 | 16, Cerrigcochion Lane, Brecon, LD3 7NP, Wales |
| ELIS-WILLIAMS, David Geoffrey ACTIVE | Director | 01 Nov 2023 | | Wales | February 1957 | 22, Twecelyn, 22 Ffordd Ffriddoedd, Bangor, Gwynedd, LL57 2TW, United Kingdom |
| GALE, Fiona Elizabeth ACTIVE | Director | 01 Nov 2023 | | United Kingdom | February 1954 | Wynnstay House, Wynnstay House, Well Street, Ruthin, Denbighshire, LL15 1AN, United Kingdom |
| JOHN, Hywel Rhys Richard ACTIVE | Director | 25 Jul 2019 | | Wales | December 1963 | The Corner House, 6 Carmarthen Street, Llandeilo, Dyfed, SA19 6AE, Wales |
| OWEN-JOHN, Henry Stuart ACTIVE | Director | 01 Nov 2023 | | England | July 1955 | 32, Melbourne Road, Bramhall, Stockport, SK7 1LS, England |
| REES, Sian Eluned ACTIVE | Director | 01 Nov 2023 | | Wales | March 1950 | Datchet, Station Road, Raglan, Usk, Monmouthshire, NP15 2EP, Wales |
| WAINWRIGHT, Judith ACTIVE | Director | 15 May 2019 | | Wales | April 1954 | The Corner House, 6 Carmarthen Street, Llandeilo, Dyfed, SA19 6AE, Wales |
| WILLIAMS, Steffan Rhys ACTIVE | Director | 29 Jan 2024 | | England | December 1967 | 20, Parfrey Street, London, W6 9EN, United Kingdom |
| BENSON, Donald George RESIGNED | Secretary | | 14 Jul 2000 | | | Hendy Newydd Salem Road, St Clears, Carmarthen, Dyfed, SA33 4DH |
| HUGHES, Evan Gwilym RESIGNED | Secretary | 14 Jul 2000 | 30 Apr 2007 | | | Cynlais 24 Carmarthen Street, Llandeilo, Carmarthenshire, SA19 6AN |
| MURPHY, Kenneth RESIGNED | Secretary | 01 May 2007 | 31 Jul 2024 | | | 6 Alan Road, Llandeilo, Dyfed, SA19 6HT |
| ANTHONY, Robert RESIGNED | Director | 19 Sep 2014 | 14 Nov 2016 | Wales | August 1947 | The Corner House, 6 Carmarthen Street, Llandeilo, Dyfed, SA19 6AE, Wales |
| BELL, Martin Guy RESIGNED | Director | | 25 Oct 1997 | | October 1953 | Penybont, Llanwnen, Lampeter, Dyfed, SA48 7JT |
| BURNHAM, Barry Clifford, Professor RESIGNED | Director | 03 Mar 2009 | 15 Jan 2019 | Wales | April 1954 | Britannia, Cwmann, Lampeter, Dyfed, SA48 8JN |
| BURNHAM, Barry Clifford, Professor RESIGNED | Director | | 24 Sep 2004 | Wales | April 1954 | Britannia, Cwmann, Lampeter, Dyfed, SA48 8JN |
| CASELDINE, Astrid RESIGNED | Director | 23 Sep 2016 | 01 Nov 2023 | Wales | February 1952 | Llys-Wen, Cellan, Lampeter, SA48 8HU, Wales |
| CLUBB, Nigel David RESIGNED | Director | 27 Apr 2017 | 26 Jun 2023 | Wales | November 1949 | 49, Watton, Brecon, Powys, LD3 7EG, Wales |
| DAVIES, Jeffrey Lyn RESIGNED | Director | | 01 Nov 2023 | Wales | November 1943 | Llwynbedn, Llanbadarn Road, Aberystwyth, Ceridigion, SY23 1EY |
| DELANEY, Christopher John RESIGNED | Director | | 01 Nov 2023 | United Kingdom | July 1949 | The Farmhouse, Sir Johns Hill, Gosport Street, Laugharne, SA33 4TD |
| HOULDER, Christopher Howard RESIGNED | Director | | 27 Nov 1998 | | July 1928 | Brynllwyd Cliff Terrace, Aberystwyth, Dyfed, SY23 2DN |
| JAMES, Heather RESIGNED | Director | 19 Sep 2014 | 15 Sep 2022 | Wales | October 1945 | The Corner House, 6 Carmarthen Street, Llandeilo, Dyfed, SA19 6AE, Wales |
| KENNEDY, Robert Alexander RESIGNED | Director | | 25 Nov 2000 | Wales | March 1925 | Pill End Cottage 78 Pill Road, Hook, Haverfordwest, Dyfed, SA62 4LU |
| MUSSON, Christopher Robert RESIGNED | Director | 20 Apr 2004 | 25 Sep 2015 | Wales | November 1935 | Tanyffordd, Pisgah, Aberystwyth, Ceredigion, SY23 4NE |
| MUSSON, Christopher Robert RESIGNED | Director | | 08 Feb 1992 | Wales | November 1935 | Tanyffordd, Pisgah, Aberystwyth, Ceredigion, SY23 4NE |
| PLUNKETT DILLON, Emma Catherine, Dr RESIGNED | Director | 24 Sep 2004 | 04 Feb 2014 | United Kingdom | July 1957 | Glandwr, Tal Y Bont, Aberystwyth, Ceredigion, SY24 5EE |
| PLUNKETT DILLON, Mrs Emma RESIGNED | Director | 01 Apr 2020 | 01 Nov 2023 | United Kingdom | July 1957 | Glandwr, Glandwr, Talybont, Ceredigion, SY24 5EE, United Kingdom |
| PROTHEROE-JONES, Jennifer RESIGNED | Director | 19 Feb 2009 | 17 Mar 2021 | Wales | March 1963 | The Corner House, Carmarthen Street, Llandeilo, SA19 6AE, Wales |
| RATCLIFFE, John Baron RESIGNED | Director | 01 Nov 2023 | 27 Mar 2026 | Wales | May 1953 | 81, Upper Garth Road, Bangor, Gwynedd, LL57 2SS, United Kingdom |
| WHEELER, Nicholas John Wheeler RESIGNED | Director | 08 Oct 2010 | 31 Aug 2022 | United Kingdom | April 1945 | The Corner House, 6 Carmarthen Street, Llandeilo, Dyfed, SA19 6AE, Wales |