| Alan James Chaplin | Director | 1 Jan 2015 | 19 Jul 2015 | British | 65 years |
| Andrew Joseph Heath | Director | 9 Dec 2017 | 1 Aug 2023 | British | 62 years |
| Bartholomeus Cornelis Schmeink | Director | 31 Dec 2007 | 1 Dec 2011 | Dutch | 58 years |
| Emma Jane Jestin | Director | 31 Jul 2020 | 10 Jun 2022 | British | 43 years |
| Hendrikus Petrus Maria Verwer | Director | 28 Jun 2005 | 1 Nov 2007 | Netherlands | 66 years |
| Jan Chaudhry | Director | 20 Jul 2015 | 9 Dec 2017 | British | 59 years |
| Jane Christine English | Director | 15 Jun 2022 | 1 Aug 2023 | British | 54 years |
| Jeremy Paul Bowen | Director | 6 Oct 2011 | 31 Jan 2020 | British | 54 years |
| Lesley Cusick | Secretary | 28 Jun 2005 | 31 Dec 2007 | British | - |
| Maarten Pieter Spaargaren | Director | 1 Dec 2011 | 31 Dec 2014 | Dutch | 58 years |
| Nqh (co Sec) Limited | Corporate Nominee Secretary | 12 May 2005 | 28 Jun 2005 | - | - |
| Nqh Limited | Corporate Nominee Director | 12 May 2005 | 28 Jun 2005 | United Kingdom | - |
| Peter Morton | Director | 1 Nov 2007 | 7 Oct 2011 | British | 56 years |
