| DALE, Thomas Andrew ACTIVE | Secretary | 19 Mar 2020 | | | | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| DALE, Thomas Andrew ACTIVE | Director | 26 Mar 2025 | | England | April 1986 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| MEIER, Jutta ACTIVE | Director | 22 Jan 2024 | | United States | May 1966 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| COVENTRY, James Leslie RESIGNED | Secretary | 19 Feb 1993 | 16 Jan 2009 | | | 85 Priory Oak, Bridgend, Mid Glamorgan, CF31 2HZ |
| HOWELLS, Jason Mark RESIGNED | Secretary | 11 Apr 2018 | 20 Dec 2019 | | | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| RASMUSSEN, Phillip John RESIGNED | Secretary | 19 Jan 2009 | 01 Apr 2018 | | | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| WATSON, Deirdre Mary Alison RESIGNED | Secretary | 19 Feb 1993 | 26 Oct 1994 | | | 10 Elgar Avenue, Ealing, London, W5 3JU |
| WATSON, Deirdre Mary Alison RESIGNED | Secretary | | 19 Feb 1993 | | | 10 Elgar Avenue, Ealing, London, W5 3JU |
| AINSWORTH, Godfrey Howard Harrison, Dr RESIGNED | Director | 20 Jun 1997 | 25 Jun 2019 | England | June 1955 | Kingscote, House, Kingscote, Tetbury, Gloucestershire, GL8 8XY |
| BOOTH, Roger Hignett RESIGNED | Director | | 01 Mar 1993 | | May 1940 | 113 Montagu Road, Datchet, Slough, Berkshire, SL3 9DX |
| BYARS, Stephen RESIGNED | Director | 29 Aug 2000 | 07 Mar 2003 | | March 1958 | The Spinney 126 Cyncoed Road, Cyncoed, Cardiff, CF2 6BN |
| COVENTRY, James Leslie RESIGNED | Director | 01 Jan 1998 | 16 Jan 2009 | | April 1945 | 85 Priory Oak, Bridgend, Mid Glamorgan, CF31 2HZ |
| DOBBYN, Francis RESIGNED | Director | 18 Apr 1996 | 24 May 1996 | | January 1948 | 6 Hungershall Park, Tunbridge Wells, Kent, TN4 8ND |
| DOBBYN, Francis RESIGNED | Director | 15 Feb 1993 | 27 Mar 1996 | | January 1948 | 6 Hungershall Park, Tunbridge Wells, Kent, TN4 8ND |
| FOOTITT, Graham Lawrence RESIGNED | Director | 24 Jan 1994 | 24 May 1996 | United Kingdom | January 1942 | Si Rusa Hopgarden Lane, Sevenoaks, Kent, TN13 1PU |
| HASTIE, John Duncan RESIGNED | Director | 18 Apr 1996 | 24 May 1996 | | July 1944 | 23 The Green, Twickenham, Middlesex, TW2 5TU |
| HASTIE, John Duncan RESIGNED | Director | 13 May 1994 | 18 Apr 1996 | | July 1944 | 23 The Green, Twickenham, Middlesex, TW2 5TU |
| HIERL, Thomas RESIGNED | Director | 19 Dec 2001 | 07 Mar 2003 | | February 1952 | 1952 Sunderland Drive, Bethleham, Pennsylvania Pa 18015 |
| LEMOS, Americo RESIGNED | Director | 10 Jan 2022 | 28 Oct 2024 | United States | July 1967 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| NELSON, Andrew William, Dr RESIGNED | Director | | 10 Jan 2022 | Wales | January 1955 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| PULLEN, Timothy Neil RESIGNED | Director | 28 Mar 2019 | 07 Jun 2023 | England | November 1977 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| REID, Thomas Richard Duncan RESIGNED | Director | | 30 Nov 1992 | | September 1944 | Crowsteps Field House, Tydehams, Newbury, Berkshire, RG14 6JT |
| RUMMINGS, Neil John RESIGNED | Director | 07 Jun 2023 | 23 Jan 2024 | Wales | May 1975 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| SANDERS, Malcolm Edward RESIGNED | Director | 20 Jun 1997 | 28 Feb 1999 | Wales | February 1950 | Broadlands The Meadows, Penllyn, Cowbridge, South Glamorgan, CF71 7RL |
| SCOTT, Michael Darak RESIGNED | Director | | 31 May 2006 | Wales | August 1957 | Charnwood House, 4 Springfields, Cardiff, South Glamorgan, CF3 2LG |
| WAIGHT, Roy Dennis RESIGNED | Director | | 15 Feb 1993 | | January 1953 | Old Vicarage Church Lane, Rowledge, Farnham, Surrey, GU10 4EN |
| WILLIAMS, Howard Robert, Dr RESIGNED | Director | 01 Jan 1998 | 01 Aug 2019 | United Kingdom | June 1954 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |