| Andrew James Strickland | Director | 3 Jan 2017 | 25 Jan 2019 | British | 44 years |
| Anthony Dickin | Director | 4 Jun 2014 | 4 Oct 2023 | British | 56 years |
| Charles Richard Czajkowski | Director | 2 Apr 2013 | 14 Feb 2014 | British | 67 years |
| David Hirst | Director | 1 Oct 2019 | 17 Apr 2024 | British | 64 years |
| David Hirst | Secretary | 1 Oct 2019 | 1 Feb 2024 | - | - |
| Deon Hendrik Smook | Director | 2 Apr 2012 | 1 Jan 2013 | British | 75 years |
| Edward Charles Francis Bowen | Director | 2 Apr 2012 | 2 Apr 2018 | British | 48 years |
| Eric Brian Goddard | Director | 11 Jun 2002 | 4 Jun 2014 | British | 79 years |
| Gehrig Stannard Schultz | Director | 1 Oct 2019 | 30 Nov 2024 | American | 62 years |
| Harry Pierre Lazarus | Nominee Director | 11 Jun 2002 | 11 Jun 2002 | British | 89 years |
| Heather Ann Lazarus | Nominee Secretary | 11 Jun 2002 | 11 Jun 2002 | British | - |
| Jennifer Rosemary Goddard | Director | 11 Jun 2002 | 4 Jun 2014 | British | 80 years |
| Jennifer Rosemary Goddard | Secretary | 11 Jun 2002 | 4 Jun 2014 | British | - |
| John Bell | Director | 4 Jun 2014 | 18 Jun 2014 | British | 68 years |
| Lee Clarke | Director | 26 Jul 2024 | 7 May 2025 | British | 63 years |
| Mark Andrew Enfield | Director | 8 Dec 2016 | 29 Feb 2024 | British | 66 years |
| Peter Knox | Director | 2 Apr 2012 | 23 Jul 2015 | British | 70 years |
| Richard Bradley | Director | 1 Jan 2013 | 30 Sept 2019 | British | 45 years |
| Richard Bradley | Secretary | 4 Jun 2014 | 30 Sept 2019 | - | - |
| Rupert James Brown | Director | 25 Jan 2019 | 31 Jul 2022 | British | 43 years |
| Samantha Jane Bowen | Director | 2 Apr 2012 | 4 Jun 2014 | British | 45 years |
| Stephen Wilson | Director | 1 May 2022 | 26 Jul 2024 | British | 54 years |
| Steven Donaldson | Director | 4 Jun 2014 | 3 Jan 2017 | British | 67 years |
