| Abhinav Kumar Shah | Director | 18 Aug 2011 | 25 Jan 2017 | British | 51 years |
| Ashley Hudd | Director | 18 Aug 2011 | 11 Oct 2011 | British | 46 years |
| Barrie Hill | Director | 5 Sept 2014 | 8 Jan 2016 | British | 44 years |
| Carl Thomas Senior | Director | 7 Jul 2021 | 27 Oct 2021 | British | 47 years |
| Christopher Patrick Le Neve Foster | Director | 8 Jan 2016 | 30 Apr 2021 | British | 44 years |
| Christopher Sean Levy | Director | 12 Oct 2011 | 19 Aug 2014 | British,american | 51 years |
| Colin Gyte | Director | 27 Jul 2015 | 8 Jan 2016 | British | 45 years |
| Darren Wang Yip Lui | Director | 14 Jul 2009 | 25 Jun 2010 | British | 44 years |
| David John Blagbrough | Director | 29 Apr 2021 | 27 Oct 2021 | British | 37 years |
| Gerald Mark Frederick Brawn | Director | 14 Jul 2009 | 18 Aug 2011 | British | 63 years |
| Graeme James Clark | Director | 12 Oct 2011 | 5 Sept 2014 | British | 53 years |
| Jonathan Michael Walthoe | Director | 27 Nov 2017 | 27 Oct 2021 | British | 50 years |
| Lydia Asaf | Director | 6 Jun 2014 | 19 Aug 2014 | Israeli | 46 years |
| Maria Alvarez Garcia | Director | 8 Jul 2010 | 12 Apr 2011 | Spanish | 45 years |
| Mark E Wuest | Director | 27 Oct 2021 | 30 May 2023 | American | 68 years |
| Maxim Kulikov | Director | 15 Jul 2009 | 21 Sept 2011 | Other | 52 years |
| Nicholas Richard Brand | Director | 30 Sept 2011 | 5 Sept 2014 | British | 50 years |
| Nizam Mir Siddiq | Director | 15 Jul 2009 | 6 Jun 2014 | United States | 53 years |
| Patrick Brittain Voisey | Director | 8 Jan 2016 | 7 Jul 2021 | British | 46 years |
| Sarah Elizabeth Hollinsworth | Director | 5 Sept 2014 | 27 Jul 2015 | British | 44 years |
| Stephen James Ullman | Director | 14 Jul 2009 | 19 Aug 2011 | British | 58 years |
| Vishal Shah | Director | 27 Jul 2015 | 27 Oct 2021 | British | 41 years |