| MORGAN, William ACTIVE | Secretary | 28 Nov 2018 | | | | 78, Pall Mall, London, SW1Y 5ES, England |
| MONHEMIUS, Andrew John, Professor ACTIVE | Director | 19 Aug 2009 | | United Kingdom | October 1942 | 78, Pall Mall, London, SW1Y 5ES, England |
| PFORR, Cameron Dean ACTIVE | Director | 22 Jul 2026 | | United States | September 1964 | 78, Pall Mall, London, SW1Y 5ES, England |
| SUNUNU, John Henry ACTIVE | Director | 07 Jul 2005 | | United States | July 1939 | 78, Pall Mall, London, SW1Y 5ES, England |
| SUNUNU, Michael Charles ACTIVE | Director | 07 Dec 2020 | | United States | October 1967 | 78, Pall Mall, London, SW1Y 5ES, England |
| VAZIRI, Mohammad Reza ACTIVE | Director | 07 Jul 2005 | | United States | April 1953 | 78, Pall Mall, London, SW1Y 5ES, England |
| ZAMANI, Khosrow ACTIVE | Director | 01 Jun 2007 | | United States | May 1943 | 78, Pall Mall, London, SW1Y 5ES, England |
| DAVIES, Janette Lesley RESIGNED | Secretary | 01 Oct 2007 | 21 Jun 2009 | | | Ard Mhor, Lochwinnoch Road, Kilmacolm, Inverclyde, PA13 4EB |
| DUFFY, Sean RESIGNED | Secretary | 25 Jun 2012 | 30 Jun 2014 | | | 7 Devonshire Square, Cutlers Gardens, London, EC2M 4YH |
| HANCOCK, Kevin Charles RESIGNED | Secretary | 14 Sep 2004 | 04 Jul 2005 | | | 65 Eardley Crescent, London, SW5 9JT |
| HERBERT, Andrew Miles RESIGNED | Secretary | 21 Jun 2009 | 25 Jun 2012 | | | 7 Devonshire Square, Cutlers Gardens, London, EC2M 4YH |
| PROTHEROE, John Robert Clement RESIGNED | Secretary | 04 Jul 2005 | 30 Sep 2005 | | | 51 Beaufort Mansions, Chelsea, London, SW3 5AF |
| ROUND, Richard Calvin RESIGNED | Secretary | 30 Sep 2005 | 01 Oct 2007 | | | Elimbriar 8 Station Road, Stanbridge, Leighton Buzzard, Beds, LU7 9JF |
| FISHER SECRETARIES LIMITED RESIGNED | Secretary | 15 Jan 2015 | 28 Nov 2018 | | | Acre House, 11/15 William Road, London, NW1 3ER, United Kingdom |
| HAMMONDS SECRETARIES LIMITED RESIGNED | Secretary | 09 Sep 2004 | 14 Sep 2004 | | | 7 Devonshire Square, Cutlers Gardens, London, EC2M 4YH |
| PENNY BLACK CORPORATE SERVICES LIMITED RESIGNED | Secretary | 30 Jun 2014 | 31 Dec 2014 | | | The Old Byre, Sevington, Grittleton, Chippenham, Wiltshire, SN14 7LD |
| BHAPPU, Ross R RESIGNED | Director | 01 Nov 2005 | 23 Jul 2009 | | April 1960 | 6076 S Biscay St, Aurora, Colorado 80016, Usa |
| EGGAR, Timothy John Crommelin RESIGNED | Director | 07 Jul 2005 | 23 Jul 2008 | England | December 1951 | Nettlebed House, Nettlebed, Nr Henley On Thames, Henley-On Thames, Oxfordshire, RG9 5DD |
| HANCOCK, Kevin Charles RESIGNED | Director | 14 Sep 2004 | 31 Dec 2006 | | October 1959 | 65 Eardley Crescent, London, SW5 9JT |
| JEFFCOCK, Robert Parkyn RESIGNED | Director | 14 Sep 2004 | 22 Aug 2006 | | October 1939 | Roc Fleuri, 1 Rue De Tenao, Monaco, Mc 98000, FOREIGN |
| LEWIS, Gordon Vernon RESIGNED | Director | 01 Jul 2006 | 30 Sep 2008 | | September 1948 | Lot 1633, Jalantebu,, Ukay Heights, Ampang, 68000, Malaysia |
| MASCALL, Graham Edward RESIGNED | Director | 13 Mar 2006 | 17 Jul 2007 | England | September 1946 | 35 Vine Road, East Molesey, Surrey, KT8 9LF |
| ROUND, Richard Calvin RESIGNED | Director | 19 Sep 2005 | 07 Dec 2020 | Scotland | April 1958 | 33, St. James's Square, London, SW1Y 4JS, England |
| HAMMONDS DIRECTORS LIMITED RESIGNED | Director | 09 Sep 2004 | 14 Sep 2004 | | | 7 Devonshire Square, Cutlers Gardens, London, EC2M 4YH |