| Aline Josette Frantzen | Director | 18 May 2017 | 16 Jan 2020 | French | 49 years |
| Alistair John Francis Gordon | Director | 24 May 2011 | 17 Apr 2012 | British | 58 years |
| Brian Robert King | Director | 24 May 2011 | 3 Jan 2012 | British | 82 years |
| Dao Dam Hieu | Director | 17 Apr 2012 | 29 Jul 2014 | French | 58 years |
| David Lowrie | Director | 29 Jul 2014 | 4 Aug 2017 | British | 60 years |
| David Raymond Franks | Director | 17 Apr 2012 | 18 Dec 2012 | British | 69 years |
| Guillaume Chanussot | Director | 17 Aug 2017 | 20 May 2021 | French | 43 years |
| Kevin John Belfield | Director | 3 Jan 2012 | 21 Mar 2012 | British | 60 years |
| Leila Emma Nicole Frances | Director | 21 Jul 2011 | 17 Apr 2012 | British | 53 years |
| Malcolm Robert Rimmer | Director | 21 Jul 2011 | 23 Mar 2018 | British | 67 years |
| Mark Paul Greasley | Director | 3 Jan 2012 | 8 Sept 2025 | British | 48 years |
| Nigel William Haines Stevens | Director | 16 Jan 2020 | 25 Mar 2021 | British | 61 years |
| Paul Leonard Robinson | Director | 20 Apr 2017 | 30 Apr 2022 | British | 69 years |
| Regis Hennion | Director | 21 Jul 2011 | 20 Oct 2016 | French | 72 years |
| Richard Ian Morgan | Director | 21 Jul 2011 | 3 Jan 2012 | British | 75 years |
| Rudolf Franciscus Haket | Director | 29 Jul 2014 | 7 Dec 2015 | Dutch | 62 years |
| Virginie Merle | Director | 19 Mar 2020 | 2 Aug 2024 | French | 46 years |