| Andrea Williams | Secretary | 21 Jan 2015 | 23 Mar 2023 | - | - |
| Andrew Graham Moss | Director | 2 Oct 1995 | 20 Dec 1999 | British | 68 years |
| Andrew Graham Moss | Secretary | 2 Oct 1995 | 12 Dec 2001 | British | - |
| Colin Barry Wagman | Director | 9 Jun 1993 | 2 Oct 1995 | British | 80 years |
| Colin Barry Wagman | Director | 26 Jun 1996 | 3 Mar 2017 | British | 80 years |
| Geoffrey Levene | Secretary | 21 May 2007 | 10 Feb 2012 | British | - |
| Graham Anthony Johnathan Emmett | Director | 20 Dec 1999 | 12 Dec 2001 | British | 63 years |
| Graham Michael Cowan | Nominee Director | 9 Jun 1993 | 9 Jun 1993 | British | 83 years |
| Howard Goldsobel | Secretary | 10 Feb 2012 | 3 Mar 2017 | - | - |
| James William Jeremy Ritblat | Director | 3 Jul 1998 | 12 Dec 2001 | British | 59 years |
| Janine Grant | Director | 25 May 2017 | 15 Dec 2020 | British | 54 years |
| Luca Padulli | Director | 3 Mar 2017 | 25 May 2017 | Italian | 71 years |
| Michael Anthony Platt | Director | 3 Dec 2007 | 24 Aug 2023 | British | 60 years |
| Paul Jonathan Goswell | Director | 6 Oct 1998 | 12 Dec 2001 | British | 62 years |
| Peter John Goodkind | Director | 9 Jun 1993 | 2 Oct 1995 | British | 75 years |
| Peter John Goodkind | Director | 26 Jun 1996 | 3 Mar 2017 | British | 75 years |
| Peter John Goodkind | Secretary | 9 Jun 1993 | 2 Oct 1995 | British | - |
| Philip Fraylich | Secretary | 12 Dec 2001 | 21 May 2007 | British | - |
| Richard Christopher Breen | Director | 2 Oct 1995 | 26 Jun 1996 | British | 69 years |
| Robert Conway | Nominee Secretary | 9 Jun 1993 | 9 Jun 1993 | British | - |
| Timothy Haden Scott | Director | 6 Aug 2001 | 12 Dec 2001 | British | 62 years |
| Wayne Louis Murray-bruce | Director | 15 Jun 2023 | 31 Jul 2025 | British | 54 years |