| Catherine Mary Maddox | Director | 28 Sept 2004 | 20 Nov 2014 | British | 62 years |
| David Christopher Lebond | Director | 28 Apr 2011 | 31 Dec 2015 | British | 67 years |
| Denis Paul Machuel | Director | 21 Nov 2014 | 20 May 2018 | French | 62 years |
| Didier Jean-marie Bernard Sandoz | Director | 23 Nov 2018 | 20 Jan 2023 | French | 64 years |
| Gilles Bernard Vestur | Director | 14 Oct 2019 | 1 Jul 2021 | French | 67 years |
| Jacquelyn Anne Mills | Director | 28 Sept 2004 | 20 Nov 2014 | British | 59 years |
| Jacquelyn Anne Mills | Secretary | 28 Sept 2004 | 28 Apr 2011 | British | - |
| John Murray Sylvester | Director | 28 Apr 2011 | 25 Oct 2018 | British | 64 years |
| Nicolas Jean-pierre Baudouin Morel | Director | 14 May 2018 | 14 Oct 2019 | French | 53 years |
| Nigel Phillip Cooper | Director | 28 Apr 2011 | 20 Nov 2014 | British | 63 years |
| Sean Michael Haley | Director | 20 Jan 2023 | 31 Dec 2024 | British | 56 years |
| Sebastien Desire Paul Godet | Director | 21 Nov 2014 | 20 May 2018 | French | 55 years |
| Sebastien Raymond De Tramasure | Director | 21 Nov 2014 | 25 Oct 2018 | French | 53 years |
| Susan Ann Hocken | Secretary | 28 Apr 2011 | 30 Nov 2015 | - | - |
| Susan Ann Hocken | Director | 28 Apr 2011 | 30 Nov 2015 | British | 72 years |
| Victoria Sapojnic | Director | 1 Jul 2021 | 20 Jan 2023 | French | 46 years |
| Wouter Broekema | Director | 14 May 2018 | 20 Jan 2023 | American | 53 years |