| Adam Mcghin | Secretary | 4 Mar 2016 | 21 Sept 2016 | - | - |
| Andrew David James | Director | 6 Feb 2003 | 31 Jan 2007 | British | 80 years |
| Andrew Rolland Cunningham | Director | 6 Feb 2003 | 28 Sept 2012 | British | 70 years |
| Calum Mercer | Director | 1 Oct 2012 | 30 Sept 2019 | British | 61 years |
| Deborah Frances Shackleton | Director | 1 Oct 2012 | 30 Sept 2021 | British | 74 years |
| Geoffrey Joseph Davis | Secretary | 6 Feb 2003 | 1 Oct 2003 | British | - |
| Gina Amoh | Director | 1 Oct 2012 | 30 Sept 2020 | British | 67 years |
| John Beresford | Director | 28 Sept 2012 | 22 Dec 2017 | British | 54 years |
| Kurt Christopher Mueller | Director | 1 Jun 2022 | 13 Feb 2025 | British | 43 years |
| Laure Duhot | Director | 28 Sept 2012 | 30 Sept 2016 | French | 65 years |
| Manpreet Dillon | Director | 30 Apr 2019 | 21 May 2021 | British | 57 years |
| Marie Louise Glanville | Secretary | 1 Oct 2003 | 18 Dec 2008 | English | - |
| Mark Christopher Fleetwood | Director | 30 Nov 2016 | 8 Jun 2018 | British | 46 years |
| Mark Jeremy Robson | Director | 27 Nov 2017 | 30 Apr 2019 | British | 67 years |
| Michael Patrick Windle | Secretary | 18 Dec 2008 | 4 Mar 2016 | British | - |
| Michael Patrick Windle | Director | 26 Jan 2004 | 14 Jan 2005 | British | 72 years |
| Michael Patrick Windle | Director | 20 Jan 2005 | 22 Jan 2009 | British | 72 years |
| Nicholas Mark Fletcher Jopling | Director | 28 Sept 2012 | 27 Nov 2017 | British | 65 years |
| Nicholas Peter On | Director | 23 Jan 2009 | 28 Sept 2012 | British | 63 years |
| Prima Director Limited | Corporate Director | 8 Jan 2003 | 6 Feb 2003 | United Kingdom | - |
| Prima Secretary Limited | Corporate Secretary | 8 Jan 2003 | 6 Feb 2003 | United Kingdom | - |
| Richard John Exley | Director | 11 Nov 2005 | 13 Jul 2007 | British | 61 years |
| Robert Henry Dickinson | Director | 6 Feb 2003 | 20 Jan 2005 | British | 92 years |
| Rodica Damian | Secretary | 21 Sept 2016 | 21 Mar 2024 | - | - |
| Rupert Jerome Dickinson | Director | 6 Feb 2003 | 20 Oct 2009 | British | 67 years |
| Sean Anthony Slade | Director | 5 May 2004 | 12 Nov 2004 | British | 62 years |
| Stephen Dickinson | Director | 6 Feb 2003 | 10 Feb 2009 | British | 92 years |
| Toby Edward Austin | Director | 2 Jul 2018 | 30 Nov 2022 | British | 54 years |