| CLARK, Diana Gillian ACTIVE | Secretary | 12 Mar 2019 | | | | The Nature Centre,, Fountain Road, Tondu, Bridgend, CF32 0EH, Wales |
| BAIN, Stuart Mark ACTIVE | Director | 20 Nov 2023 | | Wales | June 1977 | The Nature Centre,, Fountain Road, Tondu, Bridgend, CF32 0EH, Wales |
| GRANDAGE, Rosemary Victoria ACTIVE | Director | 11 Nov 2015 | | Wales | June 1964 | The Nature Centre,, Fountain Road, Tondu, Bridgend, CF32 0EH, Wales |
| AMEY, Grahame Edward RESIGNED | Secretary | 29 Apr 1992 | 12 Jun 2001 | | | Ty Croes, Llanbedr, Crickhowell, Powys, NP8 1SY |
| LANGWORTHY, Jeremy Duncan RESIGNED | Secretary | 13 Nov 2002 | 16 Nov 2005 | | | The Rhiw, Llanafan Fawr, Builth Wells, Powys, LD2 3NA |
| LEWIS, Michelle RESIGNED | Secretary | 01 Dec 2010 | 13 Nov 2013 | | | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| MERRY, Miranda Diana RESIGNED | Secretary | | 29 Apr 1992 | | | Cwmerchon, Llanwrda, Dyfed, SA19 8BA |
| MORGAN, Charles Edward RESIGNED | Secretary | 14 Dec 2016 | 03 Sep 2017 | | | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| OZOLS, Dainis RESIGNED | Secretary | 11 Nov 2015 | 07 Nov 2016 | | | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| PAYNE, Ann RESIGNED | Secretary | 12 Mar 2014 | 11 Nov 2015 | | | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| POWELL, David Jones RESIGNED | Secretary | 16 Nov 2005 | 01 Dec 2010 | | | Glanafon, Fenni Fach, Brecon, Powys, LD3 9PH |
| POWELL, David Jones RESIGNED | Secretary | 12 Jun 2001 | 13 Nov 2002 | | | Glanafon, Fenni Fach, Brecon, Powys, LD3 9PH |
| ALLUM, Charles Hilary Gilbert, Major RESIGNED | Director | 13 Nov 2002 | 05 Jan 2010 | | August 1920 | Danyfan, Cwmgwdi, Brecon, Powys, LD3 8LG |
| ALLUM, Charles Hilary Gilbert, Major RESIGNED | Director | | 15 Nov 2000 | | August 1920 | Danyfan, Cwmgwdi, Brecon, Powys, LD3 8LG |
| AMEY, Grahame Edward RESIGNED | Director | | 12 Mar 2002 | | April 1943 | Ty Croes, Llanbedr, Crickhowell, Powys, NP8 1SY |
| ANDREWS, Elizabeth Mary Nesbit, Dr RESIGNED | Director | | 01 Jul 2015 | United Kingdom | June 1942 | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| BAKER, Andrew Charles Stuart RESIGNED | Director | 18 Apr 2017 | 12 Mar 2019 | Unitd Kingdom | November 1955 | Talachddu Farm, Talachddu, Brecon, Powys, LD3 0YJ, Wales |
| BALLANCE, Susan Angela Garnons RESIGNED | Director | | 31 Dec 1992 | | October 1933 | Abercamlais House, Abercamlais, Brecon, Powys, LD3 8EY |
| BARHAM, Hazel Margaret RESIGNED | Director | 01 Apr 2000 | 01 Aug 2001 | | February 1950 | 41 Pendre, Brecon, Powys, LD3 9EA |
| BAYLIS, Robert Arthur RESIGNED | Director | | 17 Nov 1999 | | September 1923 | Pantyscallog House, Sennybridge, Brecon, Powys, LD3 8PT |
| BECK, Barry John RESIGNED | Director | | 18 Nov 1998 | | February 1950 | 35 Cradoc Road, Brecon, Powys, LD3 9LH |
| BENOY, Patrica Mary Florence, Dr RESIGNED | Director | 06 Nov 2010 | 05 Nov 2014 | Wales | September 1947 | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| BOURDILLON, Mervyn Leigh RESIGNED | Director | 04 May 1994 | 11 Sep 2002 | | August 1924 | Llwyn Madoc, Llanwrtyd Wells, Powys, LD5 4TU |
| BOWERING, Richard Harvey RESIGNED | Director | | 28 Apr 1993 | | September 1923 | Deildy, Sunnybank, Brecon, Powys, LD3 7RW |
| BRADLEY, Valerie Ann RESIGNED | Director | | 17 Nov 1999 | British | July 1958 | 6 Willow Glade, Llanigon, Hay On Wye, Hereford, HR3 5PQ |
| BRIAN, John Mark Vincent RESIGNED | Director | 08 Jul 2017 | 20 Nov 2023 | Wales | July 1954 | Holly Cottage, Mardy Lane, Llangynidr, Crickhowell, NP8 1NP, Wales |
| CARTER, Charles RESIGNED | Director | | 28 Apr 1993 | | | Tretower Tower Cottage, Tretower, Crickhowell, Powys, NP8 1RF |
| COOPER, Catherine Dianne RESIGNED | Director | | 08 Jun 1994 | | April 1962 | 7 Pontwillim, Brecon, Powys, LD3 9BT |
| CRABTREE, Lewis Frederick, Professor RESIGNED | Director | | 17 Sep 1997 | | November 1924 | Dan Y Coity, Talybont On Usk, Brecon, Powys, LD3 7YN |
| DAVIES, Jeffrey William RESIGNED | Director | | 28 Apr 1993 | | December 1951 | 7 Stanhope Street, Abergavenny, Gwent, NP7 7DH |
| DEWAN, Terence Thomas RESIGNED | Director | 06 Nov 2010 | 12 Mar 2019 | Wales | September 1953 | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| FRETTEN, Patricia RESIGNED | Director | 14 Nov 2012 | 01 Jan 2015 | United Kingdom | October 1953 | Plas Y Darren, Ystradfellte, Aberdare, Mid Glamorgan, CF44 9JF, Wales |
| FURBER, Susan Branwen RESIGNED | Director | 09 Jun 2005 | 09 Nov 2011 | United Kingdom | May 1944 | 25 Darren View, Crickhowell, Powys, NP8 1DS |
| GARNONS WILLIAMS, Dorothea Margaret RESIGNED | Director | 08 Jun 1995 | 24 Jul 1998 | | January 1925 | Treberfydd, Bwlch, Brecon, Powys, LD3 7PX |
| GIBBS, John Newton, Doctor RESIGNED | Director | 13 Nov 2002 | 01 Jan 2011 | United Kingdom | September 1940 | Aber Y Ail, Cyffredyn Lane, Llangynidr, Crickhowell, Powys, NP8 1LR |
| GOWAR, Robert Raymond RESIGNED | Director | 17 Jun 1992 | 12 Jul 1995 | Wales | September 1951 | 50 Beech Grove, Brecon, Powys, LD3 9EY |
| HANCOCK, David William, Major RESIGNED | Director | | 15 Sep 1999 | | September 1930 | Mill House, Aberyscir, Brecon, Powys, LD3 9NP |
| HAWLEY, Duncan James RESIGNED | Director | | 15 Mar 2001 | Wales | July 1957 | Fernlea, Llanfilo, Brecon, Powys, LD3 0RE |
| HIEATT, Jennifer RESIGNED | Director | | 12 Jul 1995 | | November 1936 | Ty Gwyn, Old Road Bwlch, Brecon, Powys, LD3 7RZ |
| HOLBOURN, Philistos Rognvald Howard Stoughton RESIGNED | Director | 04 May 1994 | 02 Nov 1998 | | May 1913 | 44 Pendre, Brecon, Powys, LD3 9EA |
| HOSIE, William Bruce RESIGNED | Director | 07 Dec 1995 | 18 Nov 1998 | | January 1929 | Pendre, Trefeitha, Brecon, Powys, LD3 0RN |
| IRELAND, James Arthur RESIGNED | Director | | 08 Jun 1994 | | June 1926 | Zinzan 7 Twin Oaks, Glasbury, Hereford, Herefordshire, HR3 5PE |
| JACK, William Logan RESIGNED | Director | 09 Oct 1996 | 17 Nov 1999 | | February 1946 | 57 Camden Road, Brecon, Powys, LD3 7RT |
| JAKES, Michael RESIGNED | Director | 16 Nov 2005 | 14 Nov 2007 | | July 1942 | The Old Orchard, Old Trap Road, Abergavenny, Gwent, NP7 0HW |
| JAKES, Mike RESIGNED | Director | 11 Nov 2015 | 07 Nov 2016 | Wales | July 1942 | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| JENKINS, Peter White RESIGNED | Director | | 13 Nov 2013 | Wales | October 1937 | 9, Camden Crescent, Brecon, Powys, LD3 7BY |
| JONES, Eleanor Jean RESIGNED | Director | 14 Nov 2012 | 04 Aug 2015 | Wales | April 1965 | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| JONES, Gareth William RESIGNED | Director | | 29 Apr 1992 | | April 1945 | Llanbeilin, Llangorse, Brecon, Powys, LD3 7UL |
| JONES, Mair Gwen Adele RESIGNED | Director | 18 Nov 1999 | 15 Nov 2000 | | March 1943 | Pwll Court Farm Duffryn Crawnon, Llangynidr, Crickhowell, Powys, NP8 1NU |
| KELLY, Peter Joseph RESIGNED | Director | 12 Jul 1995 | 01 Apr 1997 | | September 1962 | Gwarallt, Sarnau, Brecon, Powys, LD3 9PT |
| KING, Harold Anthony Halloran RESIGNED | Director | | 28 Apr 1993 | | January 1923 | Old Rectory, Llandefalle, Brecon, Powys, LD3 0ND |
| LANGWORTHY, Jeremy Duncan RESIGNED | Director | 28 Apr 1993 | 16 Nov 2005 | | November 1958 | The Rhiw, Llanafan Fawr, Builth Wells, Powys, LD2 3NA |
| LAWRENCE, Owen Edward RESIGNED | Director | 05 Nov 2014 | 09 Jan 2017 | United Kingdom | January 1987 | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| LEES, Michael William RESIGNED | Director | 28 Apr 1993 | 08 Jun 1994 | | May 1942 | 23 Blaen Cwm Road, Llansamlet, Swansea, West Glamorgan, SA7 9TA |
| LEWIS, Michelle Anne RESIGNED | Director | 13 Mar 2003 | 09 Nov 2013 | United Kingdom | November 1967 | Tyisaf, Bronllys, Brecon, Powys, LD3 0LG |
| LOWE, Norman Ralph RESIGNED | Director | | 05 Nov 2014 | Wales | May 1947 | 6 Tai Canol, Llangorse, Brecon, Powys, LD3 7UR |
| MORELLI, Leon Kenneth RESIGNED | Director | | 03 Dec 1992 | | September 1943 | Chancery House, Broad Street, Hay On Wye, Hereford, HR3 5DB |
| MORGAN, Charles Cennydd RESIGNED | Director | 11 Nov 2015 | 03 Sep 2017 | Wales | December 1969 | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| NOBLE, Keith RESIGNED | Director | 12 Nov 2008 | 05 Nov 2014 | Wales | January 1946 | Bryn Yr Haul, 28 Belle Vue Gardens, Brecon, Powys, LD3 7NY |
| OZOLS, Dainis RESIGNED | Director | 01 Nov 2013 | 07 Nov 2016 | Wales | May 1955 | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| PAYNE, Ann RESIGNED | Director | 18 Jun 2003 | 11 Nov 2015 | United Kingdom | September 1939 | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| PILTON, Barry John RESIGNED | Director | | 18 Nov 1998 | | February 1946 | Tycerrig, Llandefaelog Fach, Brecon, Powys, LD3 9PS |
| PORTER, Michael RESIGNED | Director | | 29 Apr 1992 | United Kingdom | June 1935 | Aberhoywe Farm, Cyffredyn Lane Llangynidr, Crickhowell, NP8 1LR |
| POSTON, Susan Mary RESIGNED | Director | 12 Jun 2001 | 10 Nov 2004 | United Kingdom | August 1937 | Old Rectory, Llandefaelog Fach, Brecon, Powys, LD3 9PS |
| POWELL, David Jones RESIGNED | Director | 18 Nov 1998 | 06 Nov 2010 | United Kingdom | October 1936 | Glanafon, Fenni Fach, Brecon, Powys, LD3 9PH |
| RAIKES, David Geoffrey RESIGNED | Director | 08 Jul 2017 | 12 Mar 2019 | United Kingdom | October 1949 | Treberfydd House, Llangasty, Brecon, Powys, LD3 7PX, Wales |
| RICHARDSON, Allen Guy RESIGNED | Director | 12 Jun 2001 | 01 Jun 2003 | | October 1959 | 18 Newport Street, Hay On Wye, Powys, HR3 5BG |
| ROBERTS, Geraint Wyn RESIGNED | Director | 12 Jun 2001 | 10 Nov 2004 | Wales | September 1971 | 23 Heol Glantawe, Ystradgynlais, Swansea, Powys, SA9 1ES |
| ROCHE SAUNDERS, Richard David Kyle RESIGNED | Director | 13 May 1997 | 01 Apr 2000 | | June 1948 | 6 Meadow View, Llanfihangel Talyllyn, Brecon, Powys, LD3 7TX |
| SARGEANT, Wayne RESIGNED | Director | 17 Nov 1999 | 07 Oct 2010 | United Kingdom | June 1956 | 39, Beech Grove, Brecon, Powys, LD3 9ET |
| SHROUDER, John Peter RESIGNED | Director | 12 Nov 2008 | 31 Mar 2017 | United Kingdom | July 1945 | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| STEVENS, John Roger RESIGNED | Director | | 06 Nov 2010 | United Kingdom | February 1933 | Bridge House, Llanfrynach, Brecon, Powys, LD3 7BQ |
| SUMMERFIELD, Heather Jill RESIGNED | Director | 28 Apr 1993 | 15 Nov 2006 | Wales | April 1937 | Fir Tree Cottage, Penbont Road Talgarth, Brecon, Powys, LD3 0BY |
| THOMAS, Huw RESIGNED | Director | 01 Nov 2013 | 20 Apr 2014 | Wales | July 1953 | 3, Dan Y Wern, Pwllgloyw, Brecon, Powys, LD3 9PW, Wales |
| VALE, James Edward RESIGNED | Director | 08 Jun 1994 | 12 Nov 2003 | | February 1965 | 3 Griffin Terrace, Talyllyn, Brecon, Powys, LD3 7TD |
| WHITE, Rosemary Anne RESIGNED | Director | 08 Jun 1994 | 08 Mar 1995 | | June 1953 | 5 Gileston Cottage, Talybont On Usk, Brecon, Powys, LD3 7UX |
| WHITFIELD, Rosemary Joy RESIGNED | Director | 14 Nov 2012 | 14 May 2014 | United Kingdom | October 1958 | 56, Pontwilym, Brecon, Powys, LD3 9BS, Wales |
| WILSON, Veronica Ann RESIGNED | Director | 06 Nov 2010 | 11 Nov 2015 | Wales | January 1947 | Lion House, Bethel Square, Brecon, Powys, LD3 7AY |
| WRIGHT, Bernard James RESIGNED | Director | 04 May 1994 | 01 Mar 2014 | United Kingdom | August 1921 | Glan Menascin, Llanfrynach, Brecon, Powys, LD3 7BQ |
| YOUNG, Margaret Rosalind Clare RESIGNED | Director | 12 Nov 2003 | 14 Nov 2012 | United Kingdom | January 1939 | Heolfanog, Ffrwdgrech, Brecon, Powys, LD3 8LE |