| Albert Heeneman | Director | 1 Aug 1992 | 31 Mar 1995 | Netherlands | 91 years |
| Alexander Cairncross Toohey | Director | 1 Aug 1992 | 15 Sept 1993 | Irish | 92 years |
| Alexander Schmitt | Director | 1 Apr 2011 | 30 Sept 2020 | German | 54 years |
| Allan Leonard Shout | Director | 8 Jun 2007 | 25 Jun 2009 | South African | 71 years |
| Andres Mata Guzman | Director | 4 Oct 2011 | 1 Aug 2012 | Venezuelan | 51 years |
| Andrew Peter Bullman | Director | 9 Dec 2019 | 30 May 2022 | British | 57 years |
| Andrew William Hodges | Secretary | 22 Jul 2014 | 30 Nov 2014 | - | - |
| Andrew William Hodges | Secretary | 8 Dec 2015 | 24 Feb 2016 | - | - |
| Andrew William Hodges | Director | 16 May 2014 | 16 Apr 2015 | British | 59 years |
| Andrew William Hodges | Secretary | 8 Jan 2007 | 28 Apr 2011 | British | - |
| Anthony Edwin Redman | Director | 19 Dec 2002 | 4 Jul 2003 | British | 78 years |
| Ashley Louise Gerrard | Secretary | 5 Nov 2014 | 8 Dec 2015 | - | - |
| Ben Magara | Director | 22 Jun 2006 | 13 Nov 2009 | South African | 59 years |
| Carlos Alberto Gil | Director | 1 Aug 2012 | 16 May 2014 | Argentinian | 53 years |
| Catherine Louise Mason | Secretary | 28 Apr 2011 | 22 Jul 2014 | - | - |
| Christopher Timothy Dion Moriarty | Secretary | 1 Aug 1992 | 20 Dec 1993 | British | - |
| Craig Roy Wiggill | Director | 27 Jul 2000 | 17 Sept 2004 | South African | 63 years |
| Deborah Mary Wilson | Director | 18 Sept 2015 | 10 Dec 2019 | British | 62 years |
| Debra Anne Drake | Director | 27 Jun 2018 | 1 Dec 2023 | American | 57 years |
| Dick Joseph De Jong | Director | 31 Oct 1996 | 8 Sept 1997 | Netherlands | 84 years |
| Eduardo Lopes Morales | Director | 1 Apr 2011 | 16 May 2014 | Brazilian | 60 years |
| Fiona Wai Hing Chan | Director | 24 Feb 2012 | 20 Dec 2013 | British | 54 years |
| Francois Michel Jean Jacques | Director | 8 Jun 2007 | 24 Sept 2009 | French | 66 years |
| Gareth Ingli Griffiths | Director | 18 Sept 2004 | 1 Aug 2012 | British | 76 years |
| Gareth Ingli Griffiths | Director | 13 Feb 2015 | 8 Dec 2015 | British | 76 years |
| Gareth Ingli Griffiths | Director | 8 Sept 1997 | 30 Sept 1998 | British | 76 years |
| Geoffrey Allan Wilkinson | Secretary | 27 Jul 2000 | 8 Jan 2007 | British | - |
| Gordon George Summers | Director | 1 Aug 1992 | 19 Aug 1994 | British | 77 years |
| Gordon John West | Secretary | 20 Dec 1993 | 6 Sept 1999 | British | - |
| Heike Truol | Director | 16 May 2014 | 17 Mar 2020 | British | 56 years |
| Hendrik George Dijkgraaf | Director | 6 Mar 1995 | 21 Jul 1997 | Dutch | 80 years |
| Ian Botha | Director | 28 Nov 2008 | 5 Nov 2009 | South African | 55 years |
| Ian Robert Wakely | Director | 10 Oct 2012 | 17 Aug 2015 | Australian | 75 years |
| Jacqueline Anne Mcnally | Secretary | 30 Aug 2012 | 17 Jul 2013 | - | - |
| James Roland Williams | Director | 1 Aug 1992 | 6 Mar 1995 | British | 87 years |
| Jan Arie De Kreij | Director | 1 Apr 1995 | 31 Mar 1997 | Dutch | 84 years |
| John Michael Mills | Director | 13 Feb 2015 | 5 Apr 2018 | British | 62 years |
| John Nicholas Wallington | Director | 1 Jul 2003 | 1 Jan 2005 | South African | 69 years |
| John Southwood Jennings | Director | 1 Aug 1992 | 30 Jun 1994 | British | 89 years |
| Jonathan Guthrie Aitken | Director | 6 Mar 2007 | 2 Nov 2007 | British | 50 years |
| Jyoti Eruch Munsiff | Secretary | 16 Dec 1993 | 1 Aug 1994 | British | - |
| Karen Maria Alida De Segundo | Director | 1 Aug 1998 | 27 Jul 2000 | British | 80 years |
| Katie Laura Southwell | Director | 9 Jun 2023 | 26 Jun 2024 | British | 46 years |
| Keith Roderick Tucker | Director | 1 Jan 2003 | 8 Dec 2015 | British | 66 years |
| Laurence Ian Mutch | Director | 19 Sept 1994 | 8 Sept 1997 | British | 79 years |
| Lindsay Ross Flint | Director | 8 Sept 1997 | 15 Oct 2002 | Australian | 80 years |
| Maarten Albert Van Den Bergh | Director | 1 Jul 1994 | 8 Sept 1997 | Dutch | 84 years |
| Michael Adriaan Boersma | Director | 15 Sept 1993 | 22 May 1995 | Dutch | 79 years |
| Michael John Gordon | Director | 27 Jul 2000 | 5 Dec 2002 | British | 73 years |
| Michael John Rowe | Director | 5 Oct 1998 | 10 Sept 1999 | Australian | 67 years |
| Michael Patrick Treanor | Director | 21 Jul 1995 | 8 Sept 1997 | British | 74 years |
| Neil Dhar | Director | 22 Jun 2006 | 8 Feb 2010 | Australian British | 64 years |
| Nicholas Jordan | Director | 15 Aug 2000 | 16 May 2014 | British | 71 years |
| Nicholas Jordan | Secretary | 15 Aug 2000 | 8 Jan 2007 | British | - |
| Nigel Henry Penny | Director | 11 Feb 1999 | 27 Jul 2000 | British | 79 years |
| Norman Bloe Mbazima | Director | 18 Nov 2009 | 1 Apr 2011 | Zambian | 68 years |
| Norman Bloe Mbazima | Director | 21 Jan 2004 | 31 May 2006 | Zambian | 68 years |
| Paul Grainger Townsend | Director | 1 Jan 2003 | 6 Mar 2007 | British | 74 years |
| Paul Grainger Townsend | Director | 15 Feb 2008 | 1 Aug 2012 | British | 74 years |
| Paul Thomas Demzik | Director | 8 Dec 2015 | 31 Mar 2018 | American | 65 years |
| Peter Graeme Whitcutt | Director | 1 Mar 2017 | 1 Dec 2023 | South African | 61 years |
| Richard John Brent Price | Director | 27 Jun 2018 | 1 Mar 2023 | Canadian | 63 years |
| Robin Craig Berry | Director | 24 Mar 2005 | 26 Apr 2006 | South African | 64 years |
| Rodney Harold Elliott | Director | 1 Mar 2017 | 8 Mar 2024 | Australian | 66 years |
| Roger Somerset Wicks | Director | 27 Jul 2000 | 8 Jun 2007 | South African | 73 years |
| Ronald Arthur Sellwood | Director | 26 Feb 2003 | 24 Nov 2003 | South African | 69 years |
| Slades Trust Limited | Corporate Secretary | 6 Sept 1999 | 27 Jul 2000 | - | - |
| Timothy Donald Ryan Morrison | Director | 8 Sept 1997 | 18 Jan 1999 | British | 73 years |
| Trevor Haydn Walters | Director | 6 Apr 1999 | 27 Jul 2000 | British | 74 years |
| Walter Van De Vijver | Director | 8 Sept 1997 | 31 Jul 1998 | Dutch | 71 years |
| Zaheer Docrat | Director | 9 Sept 2009 | 1 Apr 2011 | South African | 55 years |
| Zaheer Docrat | Director | 1 Aug 2012 | 13 Feb 2015 | South African | 55 years |