| DALE, Thomas Andrew ACTIVE | Secretary | 19 Mar 2020 | | | | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| BASTANI, Bamdad ACTIVE | Director | 01 Jan 2024 | | United States | August 1953 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| CHESNEY, Ellen Carol Tredway ACTIVE | Director | 13 May 2019 | | England | December 1962 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| CUBITT, Mark ACTIVE | Director | 08 Oct 2024 | | United Kingdom | January 1963 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| DENNEHY, Robert ACTIVE | Director | 01 Jul 2026 | | United States | July 1973 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| MARCED, Maria ACTIVE | Director | 01 Jan 2024 | | Spain | July 1954 | 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 |
| O’CARROLL, Thomas David ACTIVE | Director | 01 Jul 2026 | | Ireland | February 1975 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| COVENTRY, James Leslie RESIGNED | Secretary | 13 Apr 1999 | 16 Jan 2009 | | | 85 Priory Oak, Bridgend, Mid Glamorgan, CF31 2HZ |
| HOWELLS, Jason Mark RESIGNED | Secretary | 15 Mar 2017 | 20 Dec 2019 | | | Iqe, Pascal Close, St. Mellons, Cardiff, CF3 0LW, Wales |
| RASMUSSEN, Phillip John RESIGNED | Secretary | 19 Jan 2009 | 15 Mar 2017 | | | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| FILBUK (SECRETARIES) LIMITED RESIGNED | Secretary | 01 Apr 1999 | 14 Apr 1999 | | | Eversheds, Fitzalan House, Fitzalan Road, Cardiff, South Glamorgan, CF24 0EE |
| LINK COMPANY MATTERS LIMITED RESIGNED | Secretary | 20 Dec 2019 | 19 Mar 2020 | | | The Registry, 34 Beckenham Road, Beckenham, Kent, BR3 4TU, England |
| AINSWORTH, Godfrey Howard Harrison, Dr RESIGNED | Director | 22 Apr 1999 | 25 Jun 2019 | England | June 1955 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| BRESSNER, Glen RESIGNED | Director | 30 Apr 1999 | 17 May 2002 | | August 1960 | 2745 Evergreen Grete, Emmaus, Pennsylvania Pa 18049, Usa |
| BYARS, Stephen RESIGNED | Director | 01 Jan 2001 | 07 Mar 2003 | | March 1958 | The Spinney 126 Cyncoed Road, Cyncoed, Cardiff, CF2 6BN |
| CLARKE, Richard John George RESIGNED | Director | 08 Mar 2001 | 31 Aug 2002 | England | April 1955 | Redwood Harp Hill, Charlton Kings, Cheltenham, Gloucestershire, GL52 6PX |
| GIBSON, Simon John, Dr RESIGNED | Director | 01 Jan 2002 | 13 Jun 2017 | United Kingdom | March 1958 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| GRANT, David, Sir RESIGNED | Director | 18 Sep 2012 | 18 Sep 2021 | Wales | September 1947 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| HALL, Stuart Andrew RESIGNED | Director | 10 Dec 2004 | 12 Mar 2007 | | April 1967 | 4 Cherry Trees Broadway Green, St Nicholas, Vale Of Glamorgan, CF5 6SR |
| HIERL, Thomas RESIGNED | Director | 30 Apr 1999 | 07 Mar 2003 | | February 1952 | 1952 Sunderland Drive, Bethleham, Pennsylvania Pa 18015 |
| HULL, Victoria Mary RESIGNED | Director | 01 Aug 2021 | 30 Jun 2026 | United Kingdom | March 1962 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| JONES, Derek William, Sir RESIGNED | Director | 29 Nov 2017 | 31 Dec 2023 | Wales | December 1952 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| LAMB, Martin Steven Mark RESIGNED | Director | 22 Nov 2000 | 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, South Glamorgan, CF3 0LW |
| MASSIE, Scott RESIGNED | Director | 30 Apr 1999 | 31 Aug 2002 | | September 1961 | 3901 Peacock Dr, Bethleham, Pennsylvania Pa 18020 |
| MELDRUM, Adrian Gilmour RESIGNED | Director | 29 Jun 2010 | 21 Sep 2012 | England | March 1970 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| NELSON, Andrew William, Dr RESIGNED | Director | 13 Apr 1999 | 18 Jun 2024 | Wales | January 1955 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| PULLEN, Timothy Neil RESIGNED | Director | 04 Feb 2019 | 07 Jun 2023 | England | November 1977 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| RASMUSSEN, Phillip John RESIGNED | Director | 12 Mar 2007 | 01 Apr 2018 | Wales | October 1970 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| SCOTT, Michael Darak RESIGNED | Director | 13 Apr 1999 | 31 May 2006 | Wales | August 1957 | Charnwood House, 4 Springfields, Cardiff, South Glamorgan, CF3 2LG |
| SMITH, Philip Patrick RESIGNED | Director | 19 Dec 2016 | 01 Jan 2025 | United Kingdom | September 1957 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| SUNIARA, Harmesh Kumar RESIGNED | Director | 30 Jun 2023 | 27 Apr 2026 | England | November 1970 | Lombard Odier Asset Management, Queensberry House, 3 Old Burlington Street, London, W1S 3AB, United Kingdom |
| WILLIAMS, Howard Robert, Dr RESIGNED | Director | 10 Dec 2004 | 01 Aug 2019 | United Kingdom | June 1954 | Pascal Close, St Mellons, Cardiff, South Glamorgan, CF3 0LW |
| FILBUK NOMINEES LIMITED RESIGNED | Director | 01 Apr 1999 | 14 Apr 1999 | | | Eversheds, Fitzalan House, Fitzalan Road, Cardiff, South Glamorgan, CF24 0EE |