| Adrian Clifford Stapleton Lee | Director | 1 Apr 2019 | 20 Dec 2019 | British | 56 years |
| Andrea Alessandro Orlandi | Director | 20 Jul 2022 | 12 May 2023 | British | 55 years |
| Benjamin Michael O'rourke | Director | 10 Mar 2016 | 26 Jul 2016 | Australian | 53 years |
| Cheryl Maher | Director | 17 Dec 2021 | 9 Jul 2025 | Irish | 39 years |
| Claire Marianne Pettett | Director | 11 Dec 2014 | 10 Mar 2016 | British | 51 years |
| David Browell Reay | Director | 11 Dec 2014 | 28 May 2015 | British | 52 years |
| David Joy | Director | 11 Dec 2014 | 31 Mar 2019 | British | 72 years |
| Geoffrey Ross Willetts | Director | 16 Dec 2021 | 28 Jul 2023 | British | 46 years |
| Jamie Kerr | Director | 16 Jan 2020 | 22 Jun 2020 | British | 62 years |
| Jarid Russell Mathie | Director | 23 Oct 2023 | 1 May 2024 | Australian | 47 years |
| Kristy Sheridan Lansdown | Director | 28 May 2015 | 10 Mar 2016 | British | 49 years |
| Mark Boor | Director | 11 Dec 2014 | 29 May 2020 | British | 61 years |
| Mark John Packer | Director | 22 Feb 2018 | 19 Feb 2020 | British | 61 years |
| Peter Dominic Leonard | Director | 28 Jul 2023 | 31 Oct 2024 | British | 62 years |
| Peter Hawthorne | Director | 11 Dec 2014 | 1 Jul 2020 | British | 60 years |
| Raymond Gareth Willis | Director | 11 Dec 2014 | 1 Jul 2020 | British | 57 years |
| Rebecca Jayne Seeley | Director | 19 Feb 2020 | 16 Dec 2021 | British | 46 years |
| Rebecca Jayne Seeley | Director | 6 Feb 2023 | 29 Sept 2023 | British | 46 years |
| Roderick Carnan | Director | 17 Dec 2021 | 20 Jul 2022 | British | 70 years |
| Sajjad Asharia | Director | 16 Dec 2021 | 6 Feb 2023 | British | 45 years |
| Thomas Lachlan Mackellar | Director | 26 Jul 2016 | 22 Oct 2021 | Australian | 44 years |
| Thomas Oliver Jackson | Director | 20 Jul 2022 | 3 Jun 2025 | British | 45 years |
| Victoria Elizabeth Quinlan | Director | 10 Mar 2016 | 22 Feb 2018 | Australian | 50 years |
