| FERNANDES MARQUES RAMOS, Gabriel Ildefonso ACTIVE | Secretary | 24 Jun 2025 | | | | 50, Hoxton Square, London, N1 6PD |
| CASALINHO, Cristina Maria Nunes Da Veiga, Dr ACTIVE | Director | 17 Nov 2024 | | Portugal | August 1968 | 50, Hoxton Square, London, N1 6PD |
| FEIJO, Antonio Maria Maciel De Castro ACTIVE | Director | 01 Jun 2022 | | Portugal | September 1952 | 50, Hoxton Square, London, N1 6PD |
| BENNETT, Thomas RESIGNED | Secretary | 25 Jul 2012 | 02 Aug 2017 | | | 50, Hoxton Square, London, N1 6PD, United Kingdom |
| FREEMAN, Elizabeth Ann RESIGNED | Secretary | 18 Dec 2006 | 24 Apr 2012 | | | 50 Waterlow Road, London, N19 5NH |
| HOLMES, Christopher RESIGNED | Secretary | 02 Aug 2017 | 24 Jun 2025 | | | 50, Hoxton Square, London, N1 6PB, England |
| LEWIS, Christine Jane RESIGNED | Secretary | 29 Oct 2001 | 31 Aug 2004 | | | 25 Southview Drive, London, E18 1NP |
| LOVATT, Peter Anthony RESIGNED | Secretary | | 29 Sep 2001 | | | 24 Downsway, Sanderstead, South Croydon, Surrey, CR2 0JA |
| WRIGHT, Duncan Andrew RESIGNED | Secretary | 01 Sep 2004 | 18 Dec 2006 | | | 4 Ferris Avenue, Croydon, Surrey, CR0 8QQ |
| ESSAYAN, Martin Sarkis RESIGNED | Director | 22 Jul 2014 | 16 Nov 2024 | England | November 1959 | 50, Hoxton Square, London, N1 6PD |
| ESSAYAN, Mikhael RESIGNED | Director | | 20 Jul 2005 | | May 1927 | 6 Chelsea Square, London, SW3 6LF |
| FERRER CORREIA, Antonio Arruda, Professor RESIGNED | Director | 04 Oct 1993 | 19 Jan 1999 | | August 1912 | 45 A Avenida De Berna, 1093 Lisbon Codex, Portugal |
| FLOWER, William Reginald Norman RESIGNED | Director | 23 Jul 1992 | 31 Mar 1995 | United Kingdom | November 1929 | 84 Lancaster Close, St Petersburgh Place, London, W2 4JZ |
| MACHADO, Victor De Sa, Doctor RESIGNED | Director | 19 Jan 1999 | 27 Apr 2002 | | November 1933 | 45-A Avenida De Berna, Lisboa Codex, 1067, Portugal |
| MENDHAM, Peter Alfred RESIGNED | Director | | 23 Jul 1992 | | January 1924 | 17 Heather Close, Gosport, Hampshire, PO13 0BG |
| MOTA, Isabel Maria De Vasconcelos Lucena Cruz De Almeida RESIGNED | Director | 30 Aug 2017 | 01 Jun 2022 | Portugal | August 1951 | 50, Hoxton Square, London, N1 6PD |
| PERDIGAO, Jose De Azeredo, Dr RESIGNED | Director | | 10 Sep 1993 | | September 1996 | Rua Marquez De Fronteira No 8, Lisbon, FOREIGN, Portugal |
| SILVA, Artur Santos RESIGNED | Director | 01 Oct 2014 | 30 Aug 2017 | Portugal | May 1941 | C/O Calouste Gulbenkian Foundation, Av. Berna, 45a, 1067-001 Lisboa, Portugal |
| VILAR, Emilio Rui, Dr RESIGNED | Director | 29 May 2002 | 22 Jul 2014 | Portugal | May 1939 | 45-A Avenida De Berna, Lisbon 1067-001, Portugal |