| David Martin Maxfield Dutton | Director | 6 Aug 1993 | 17 Jan 1997 | British | 84 years |
| Graham Roger Brown | Secretary | 15 Sept 1995 | 17 Jan 1997 | British | - |
| Gregory Joseph Mcmahon | Secretary | 16 Mar 2009 | 11 Jan 2013 | British | - |
| Joanna Louise Goff | Director | 2 Jan 2019 | 30 Jan 2020 | British | 48 years |
| Jonathan James Burke | Secretary | 1 Feb 2001 | 16 Mar 2009 | British | - |
| Leon Neal | Nominee Director | 5 Jul 1993 | 6 Aug 1993 | British | 100 years |
| Mark Julius Alcock | Director | 6 Aug 1993 | 17 Jan 1997 | British | 73 years |
| Mark Julius Alcock | Secretary | 6 Aug 1993 | 15 Sept 1995 | British | - |
| Mark Rowan Amsden | Director | 1 Apr 2015 | 22 Feb 2017 | Australian | 63 years |
| Mark Rowan Amsden | Secretary | 13 Feb 2013 | 22 Feb 2017 | - | - |
| Martin Ackroyd | Director | 17 Jan 1997 | 25 May 2005 | British | 75 years |
| Martin Ackroyd | Secretary | 17 Jan 1997 | 1 Feb 2001 | British | - |
| Michael Gleeson | Director | 30 Jan 2020 | 22 Apr 2022 | Irish | 57 years |
| Nicholas Ian Cooper | Nominee Director | 5 Jul 1993 | 6 Aug 1993 | British | 62 years |
| Office Organization & Services Limited | Corporate Secretary | 5 Jul 1993 | 6 Aug 1993 | United Kingdom | - |
| Richard John Pennycook | Director | 1 May 2006 | 10 Apr 2013 | British | 62 years |
| Robert Winston Stott | Director | 24 Jun 2005 | 29 Sept 2006 | British | 83 years |
| Roger Anthony Owen | Director | 17 Jan 1997 | 1 Feb 2009 | British | 78 years |
| Swift Incorporations Limited | Corporate Nominee Secretary | 5 Jul 1993 | 5 Jul 1993 | United Kingdom | - |
| Trevor John Strain | Director | 10 Apr 2013 | 2 Jan 2019 | British | 51 years |
