| Alexander Donald Stewart | Director | 6 Dec 2013 | 11 Feb 2015 | British | 92 years |
| Ciaran Joseph Mulligan | Director | 9 Dec 2015 | 31 Aug 2020 | Irish | 45 years |
| David Charles Higgins | Director | 11 Feb 2015 | 30 Jun 2021 | British | 71 years |
| David Charles Martin | Director | 4 Dec 2014 | 31 Oct 2019 | British | 69 years |
| Henry Gregor Pollock | Director | 6 Dec 2013 | 11 Nov 2017 | British | 63 years |
| Howard Norman Harrison Peard | Director | 18 Sept 2014 | 3 Jun 2015 | Irish | 62 years |
| Jean Marion Mckeown | Director | 6 Dec 2013 | 31 Aug 2018 | British | 61 years |
| John Buchanan Martin | Director | 30 Sept 2016 | 28 Feb 2019 | British | 66 years |
| John Christopher Atkin | Director | 20 Mar 2017 | 29 Jun 2023 | British | 56 years |
| Kelvin Nunn | Director | 6 Dec 2013 | 4 Dec 2014 | British | 68 years |
| Kenneth John Auld | Director | 14 Oct 2021 | 13 Oct 2025 | British | 62 years |
| Martin Alan Jack | Director | 28 Nov 2017 | 31 Dec 2024 | British | 57 years |
| Maurice Dinsmore Paterson | Director | 6 Dec 2013 | 26 Sept 2021 | British | 84 years |
| Michelle Margaret Ann Mccrosson | Director | 1 May 2019 | 27 Oct 2023 | British | 57 years |
| Prudential Group Secretarial Services Limited | Corporate Secretary | 6 Dec 2013 | 17 Oct 2019 | United Kingdom | - |
| Stewart Robert Gracie | Director | 6 Dec 2013 | 4 Aug 2014 | British | 57 years |