| DALE, Thomas Andrew ACTIVE | Secretary | 19 Mar 2020 | | | | Pascal Close, St Mellons, Cardiff, CF3 0LW |
| DALE, Thomas Andrew ACTIVE | Director | 26 Mar 2025 | | England | April 1986 | Pascal Close, St Mellons, Cardiff, CF3 0LW |
| MEIER, Jutta ACTIVE | Director | 22 Jan 2024 | | United States | May 1966 | Pascal Close, St Mellons, Cardiff, CF3 0LW |
| COVENTRY, James Leslie RESIGNED | Secretary | 22 Nov 2000 | 16 Jan 2009 | | | 85 Priory Oak, Bridgend, Mid Glamorgan, CF31 2HZ |
| HOWELLS, Jason Mark RESIGNED | Secretary | 10 Apr 2018 | 20 Dec 2019 | | | Pascal Close, St Mellons, Cardiff, CF3 0LW |
| RASMUSSEN, Phillip John RESIGNED | Secretary | 19 Jan 2009 | 01 Apr 2018 | | | Lagreach, Botany Bay, Monmouthshire, NP16 6NJ, Uk |
| SECCULL, Brian Richard RESIGNED | Secretary | 30 Aug 1994 | 22 Nov 2000 | | | 12 Maple Close, Brackley, Northamptonshire, NN13 6EX |
| STONEMAN, Susan Elizabeth RESIGNED | Secretary | 12 May 1994 | 30 Aug 1994 | | | 213 Harborough Road, Kingsthorpe, Northampton, NN2 8DW |
| AINSWORTH, Godfrey Howard Harrison, Dr RESIGNED | Director | 24 Sep 2018 | 25 Jun 2019 | England | June 1955 | Pascal Close, St Mellons, Cardiff, CF3 0LW |
| BYARS, Stephen RESIGNED | Director | 22 Nov 2000 | 07 Mar 2003 | | March 1958 | The Spinney 126 Cyncoed Road, Cyncoed, Cardiff, CF2 6BN |
| GRANT, Ian Richard, Dr RESIGNED | Director | 30 Aug 1994 | 31 May 2005 | | September 1953 | 48 London Road, Godmanchester, Huntingdon, Cambridgeshire, PE18 8JA |
| LAMB, Karen Elaine RESIGNED | Director | 30 Aug 1994 | 07 Mar 2003 | | October 1963 | 16 East Chapel, Tattenhoe, Milton Keynes, Buckinghamshire, MK4 3AR |
| LAMB, Martin Steven Mark RESIGNED | Director | 30 Aug 1994 | 29 Apr 2005 | | May 1960 | 16 East Chapel, Tattenhoe, Milton Keynes, Buckinghamshire, MK4 3AR |
| LEMOS, Americo RESIGNED | Director | 10 Jan 2022 | 28 Oct 2024 | United States | July 1967 | Pascal Close, St Mellons, Cardiff, CF3 0LW |
| LEWINGTON, Keith Edward RESIGNED | Director | 12 May 1994 | 30 Aug 1994 | | August 1952 | Ford Cottage 17 Milton Road, Willen Village, Milton Keynes, Buckinghamshire, MK15 9AD |
| NELSON, Andrew William, Dr RESIGNED | Director | 22 Nov 2000 | 10 Jan 2022 | Wales | January 1955 | Pascal Close, St Mellons, Cardiff, CF3 0LW |
| PULLEN, Timothy Neil RESIGNED | Director | 28 Mar 2019 | 07 Jun 2023 | England | November 1977 | Pascal Close, St Mellons, Cardiff, CF3 0LW |
| RUMMINGS, Neil John RESIGNED | Director | 07 Jun 2023 | 23 Jan 2024 | Wales | May 1975 | Pascal Close, St Mellons, Cardiff, CF3 0LW |
| SECCULL, Brian Richard RESIGNED | Director | 30 Aug 1994 | 02 Jan 2001 | | October 1935 | 12 Maple Close, Brackley, Northamptonshire, NN13 6EX |