| WARGENT, Nicholas James ACTIVE | Secretary | 31 Jan 2025 | | | | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| LEI, Jihfen, Dr ACTIVE | Director | 01 Jul 2025 | | United States | April 1959 | 106, Waterhouse Lane, Chelmsford, CM1 2QU, England |
| TONER, John ACTIVE | Director | 01 Jul 2025 | | England | February 1981 | 6, Tebay Road, Bromborough, Wirral, Select, CH62 3PA, United Kingdom |
| VANWEES, Jason ACTIVE | Director | 31 Jan 2025 | | United States | December 1971 | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| WARGENT, Nicholas James ACTIVE | Director | 31 Jan 2025 | | England | October 1973 | 106, Waterhouse Lane, Chelmsford, Essex, CM1 2QU, England |
| WHITE, Peter Adam ACTIVE | Director | 13 Jan 2017 | | Wales | November 1961 | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| CHAPMAN, Alison Mary RESIGNED | Secretary | 24 Jan 2017 | 31 Jan 2025 | | | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| FLEMING, David Scott RESIGNED | Secretary | 01 Apr 2003 | 06 May 2008 | | | 67 Moor Lane, Wilmslow, Cheshire, SK9 6BQ |
| GROVES, Richard William RESIGNED | Secretary | 16 Jul 2014 | 24 Jan 2017 | | | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| HAAGEN, Jean Yves Bernard Francois RESIGNED | Secretary | 01 Oct 2002 | 01 Apr 2003 | | | Greenbanks, Pewley Point Pewley Hill, Guildford, Surrey, GU1 3SP |
| HENDERSON, Robert RESIGNED | Secretary | 16 Apr 1999 | 01 Oct 2002 | | | 9 Russell Drive, Bearsden, Glasgow, Lanarkshire, G61 3BB |
| OWEN, Judy Ann RESIGNED | Secretary | | 16 Apr 1999 | | | 19 Bryn Coed, St Asaph, Clwyd, LL17 0DQ |
| REES, Mark Anthony RESIGNED | Secretary | 06 May 2008 | 16 Jul 2014 | | | 8 Kenwick Close, Manor Farm, Great Sutton, South Wirral, L66 2HY |
| BAZIRE, Benoit RESIGNED | Director | 01 Mar 2000 | 08 Jan 2010 | | March 1955 | 1 Rue Louis Murat, Paris, 75008, FOREIGN, France |
| CHAPMAN, Alison Mary RESIGNED | Director | 17 Aug 2015 | 24 Jan 2017 | England | April 1961 | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| CIBIK, Melanie RESIGNED | Director | 31 Jan 2025 | 01 Jul 2025 | United States | November 1959 | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| COTTON-WILLIAMS, Sarah Jayne RESIGNED | Director | 16 Feb 2023 | 31 Jan 2025 | Wales | August 1968 | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| IVIMEY-COOK, Richard Charles RESIGNED | Director | 05 Mar 2010 | 08 Nov 2013 | England | November 1962 | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| JONES, Trefor Glyn RESIGNED | Director | | 31 Mar 2000 | United Kingdom | October 1937 | 21 Bryn Coed, St Asaph, Denbighshire, LL17 0DQ |
| KEATING, Ronald C. RESIGNED | Director | 23 Oct 2023 | 31 Jan 2025 | United States | August 1968 | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| MARKS, William David RESIGNED | Director | 01 Feb 2003 | 08 Nov 2013 | United Kingdom | September 1952 | Oakdene, Greenfields Lane, Rowton, Chester, Cheshire, CH3 6AU |
| NISLICK, David Adam RESIGNED | Director | 20 Oct 2014 | 23 Oct 2023 | United States | September 1965 | Qioptiq Limited, Glascoed Road, St. Asaph, Clwyd, LL17 0LL, Wales |
| O'NEILL, Thomas RESIGNED | Director | | 31 Dec 2001 | | August 1943 | 27 Norwood Drive Whitecraigs, Giffnock, Glasgow, G46 7LS |
| RAO, James Vincent RESIGNED | Director | 20 Oct 2014 | 23 Oct 2023 | United States | May 1967 | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| REES, Mark Anthony RESIGNED | Director | 15 Oct 2001 | 10 Aug 2015 | England | November 1963 | 8 Kenwick Close, Manor Farm, Great Sutton, South Wirral, L66 2HY |
| RYLANCE, Robert RESIGNED | Director | | 28 Feb 1992 | | February 1935 | Trem-Y-Mynydd, Tower Way, Abergele, Clwyd, LL22 7AY |
| SHAW, Steven David RESIGNED | Director | 01 Sep 2010 | 13 Jan 2017 | Wales | April 1962 | Pen Cefn, Llansannan, Denbighshire, LL16 5NS, Wales |
| SPOLTON, Keith RESIGNED | Director | 24 Jan 2017 | 14 Jan 2023 | United Kingdom | November 1965 | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| STAS, Benedict Joseph RESIGNED | Director | 23 Oct 2023 | 31 Jan 2025 | United States | November 1967 | Glascoed Road, St Asaph, Denbighshire, LL17 0LL |
| THOMPSON, Robin Paul RESIGNED | Director | 01 Jan 1999 | 31 Jan 2003 | | September 1942 | Spring Meadow, Whitehough, Chinley, High Peak, Derbyshire, SK23 6EJ |