| Allison Marianne Jeynes-ellis | Director | 2 Jul 2012 | 14 May 2014 | British | 60 years |
| Diane Therese Harbison | Director | 1 Aug 2014 | 3 Mar 2016 | British | 59 years |
| Fraser Black | Director | 2 Jul 2012 | 30 Jun 2014 | British | 64 years |
| Glenn Crocker | Director | 22 Jun 2011 | 19 Apr 2021 | British | 61 years |
| Ian James Sheldon Webster | Director | 28 Dec 2011 | 16 Jan 2014 | British | 71 years |
| Jennifer Helen Anderson-moore | Secretary | 18 Aug 2015 | 19 Apr 2021 | - | - |
| Louis Joseph Nisbet | Director | 4 Jan 2012 | 31 Aug 2017 | British | 78 years |
| Malcolm Bateman | Director | 22 Jun 2011 | 31 Dec 2016 | British | 76 years |
| Neil Thomson Gorman | Director | 24 Apr 2012 | 1 May 2014 | British | 75 years |
| Paul Stephen Oliver | Director | 29 Jun 2017 | 19 Apr 2021 | British | 47 years |
| Toby James Brook Reid | Director | 21 Mar 2016 | 19 Apr 2021 | British | 51 years |
| Yvonne Annette Barnett | Director | 2 Jun 2014 | 5 Sept 2018 | British | 60 years |