| Abubaker Kapadia | Secretary | 15 Jun 2010 | 28 Apr 2011 | - | - |
| Aimee Bibizadeh | Secretary | 17 Dec 2018 | 14 May 2020 | - | - |
| Alexander Anders Ohlsson | Director | 21 Mar 2002 | 4 Dec 2015 | British | 56 years |
| Aline Sternberg | Secretary | 2 Dec 2014 | 25 Oct 2017 | - | - |
| Andrea Ayodele Williams | Director | 1 Oct 2018 | 31 Jul 2020 | British | 51 years |
| Annika Ida Louise Aman Goodwille | Secretary | 23 Aug 2000 | 23 Mar 2009 | Swedish | - |
| Arun Vivek | Secretary | 15 Jan 2021 | 26 Jul 2023 | - | - |
| Ayesha Shaikh | Secretary | 4 May 2020 | 15 Dec 2022 | - | - |
| Ayoola Olatimigiri | Secretary | 26 Jun 2023 | 27 Aug 2024 | - | - |
| Azad Dugala | Secretary | 13 Apr 2023 | 1 Dec 2023 | - | - |
| Bella Penhall | Secretary | 31 Jan 2017 | 22 Nov 2017 | - | - |
| Cane Craig Arron Valentine Pickersgill | Director | 27 Apr 2006 | 21 Aug 2009 | British | 51 years |
| Charmaine Decastro | Secretary | 12 Mar 2018 | 30 Apr 2019 | - | - |
| Claudia Ann Wallace | Director | 1 Jun 2008 | 20 Jul 2018 | British | 51 years |
| Claudia Ann Wallace | Director | 5 Aug 2004 | 1 Jun 2008 | British | 51 years |
| Clifford Pearce | Director | 31 Oct 2017 | 28 Feb 2023 | British | 55 years |
| Clive Matthew Short | Director | 21 Sept 2018 | 13 Dec 2019 | British | 52 years |
| Daniel Marc Richard Jaffe | Director | 31 Jul 2020 | 31 Jan 2023 | British | 50 years |
| Debra Amy Parsall | Director | 24 Apr 2013 | 22 Nov 2017 | British | 44 years |
| Debra Parsall | Director | 13 Nov 2007 | 15 Jun 2010 | British | 44 years |
| Debra Parsall | Secretary | 15 Jun 2010 | 3 May 2013 | - | - |
| Douglas Armour | Secretary | 5 Feb 2018 | 15 Jan 2021 | - | - |
| Huma Tariq | Secretary | 15 Jan 2021 | 12 May 2022 | - | - |
| Iain Philip Christie | Director | 17 Apr 2012 | 6 Mar 2018 | British | 43 years |
| Ian Hancock | Director | 6 Apr 2020 | 9 Dec 2024 | British | 58 years |
| James Garner Smith Macdonald | Director | 1 Oct 1999 | 4 Dec 2015 | British | 75 years |
| James Garner Smith Macdonald | Secretary | 1 Oct 1999 | 23 Aug 2000 | British | - |
| James Henry France | Director | 5 Jun 2006 | 2 May 2007 | Usa | 66 years |
| Jennifer Jones | Secretary | 31 Aug 2012 | 11 May 2016 | - | - |
| Jennifer Jones | Secretary | 3 Jan 2022 | 6 Mar 2022 | - | - |
| Jocelyn Charles Coad | Director | 18 Jan 2011 | 31 Jul 2015 | British | 76 years |
| John Paul Nowacki | Director | 9 Mar 2005 | 1 Jun 2008 | British | 46 years |
| John Paul Nowacki | Director | 1 Jun 2008 | 27 Jan 2017 | British | 46 years |
| John Paul Nowacki | Director | 13 Apr 2023 | 9 Dec 2024 | British, | 46 years |
| Jonathan Eden Keighley | Director | 1 Oct 1999 | 4 Dec 2015 | British | 75 years |
| Jordina Roberta Therese Walker | Secretary | 22 Nov 2017 | 25 Oct 2019 | - | - |
| Kate Louise Hamblin | Director | 8 Aug 2001 | 5 Sept 2002 | Australian | 50 years |
| Luis Villar | Secretary | 26 Jun 2023 | 1 May 2025 | - | - |
| Martin Olcese | Secretary | 31 Jan 2017 | 31 Aug 2018 | - | - |
| Michael Drew | Secretary | 28 Apr 2011 | 9 Sept 2016 | - | - |
| Michelle O'flaherty | Director | 21 Sept 2018 | 1 Sept 2020 | British | 52 years |
| Neil David Townson | Director | 27 Mar 2018 | 31 Aug 2018 | British | 65 years |
| Nella Liburd | Secretary | 9 Sept 2016 | 21 Feb 2020 | - | - |
| Nima Abrishamchian | Director | 21 Sept 2018 | 14 Apr 2023 | British | 43 years |
| Noman Ali | Secretary | 15 Jan 2021 | 8 Mar 2022 | - | - |
| Orey Salu | Secretary | 16 Sept 2020 | 18 Jun 2021 | - | - |
| Paivi Helena Whitaker | Director | 9 Dec 2024 | 9 Dec 2024 | Filipino | 62 years |
| Robert William Berry | Director | 6 Jan 2003 | 31 Jan 2017 | British | 70 years |
| Ryan William O Rourke | Director | 1 Oct 2003 | 6 May 2004 | Australian | 51 years |
| Sowmya Padmanabhan | Secretary | 11 Jan 2022 | 11 Jun 2024 | - | - |
| Susan Iris Abrahams | Director | 6 Nov 2013 | 9 Dec 2024 | British | 68 years |
| Thais Guedes Bonassa | Secretary | 22 Apr 2022 | 21 Oct 2022 | - | - |
| Thomas Robert Litchfield | Secretary | 28 Jun 2018 | 1 May 2025 | - | - |
| Vanna De Rose | Secretary | 9 Sept 2016 | 27 Apr 2022 | - | - |
| Vinoy Rajanah Nursiah | Director | 1 Nov 2009 | 13 Oct 2017 | British | 52 years |