| GRANDON, Jonathan ACTIVE | Secretary | 21 Jun 2017 | | | | 9255, Coverdale Road, Fort Wayne, Indiana 46809, United States |
| GRANDON, Jonathan M ACTIVE | Director | 21 Jun 2017 | | United States | August 1975 | 9255, Coverdale Road, Fort Wayne, Indiana 46809, United States |
| MOORE, Emily Brooke ACTIVE | Director | 19 Mar 2024 | | United States | May 1979 | Pioneer House, Pond Hall Road, Hadleigh, Ipswich, IP7 5PN, England |
| TICCI, Andrea ACTIVE | Director | 06 Jul 2006 | | Italy | December 1959 | Petrotechnik House, Olympus Close, Whitehall Industrial Estate, Ipswich, Suffolk, IP1 5LN |
| WALSH, Jay ACTIVE | Director | 21 Jun 2017 | | United States | April 1969 | 9255, Coverdale Road, Fort Wayne, Indiana 46809, United States |
| BOUDRY, John Alexandre RESIGNED | Secretary | 17 Sep 1991 | 03 Sep 2010 | | | Poplar Farm, Buxhall Road, Brettingham Ipswich, Suffolk, IP7 7PA |
| HUGHES, Angela RESIGNED | Secretary | 03 Sep 2010 | 01 Oct 2010 | | | Petrotechnik House, Olympus Close, Whitehall Industrial Estate, Ipswich, Suffolk, IP1 5LN, United Kingdom |
| KENNEY, Donald RESIGNED | Secretary | 11 Mar 2014 | 21 Jun 2017 | | | Petrotechnik House, Olympus Close, Whitehouse Industrial Estate, Ipswich, Suffolk, IP1 5LN, England |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Secretary | 23 Jul 1991 | 17 Sep 1991 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |
| MITRE SECRETARIES LIMITED RESIGNED | Secretary | 01 Oct 2010 | 11 Mar 2014 | | | Mitre House, 160, Aldersgate Street, London, EC1A 4DD, United Kingdom |
| AGEHEIM, Jan Helge RESIGNED | Director | 17 Sep 1991 | 03 Sep 2010 | Sweden | March 1943 | Varmdovagen 950, 132 36 Saltsjo-Boo 01 Stockholm, FOREIGN, Sweden |
| BOUDRY, John Alexandre RESIGNED | Director | 17 Sep 1991 | 03 Sep 2010 | United Kingdom | October 1946 | Poplar Farm, Buxhall Road, Brettingham Ipswich, Suffolk, IP7 7PA |
| DE WILD, Stephen Henry RESIGNED | Director | 03 Dec 1998 | 09 Feb 2011 | United Kingdom | September 1957 | Haseena Park Farm Drive, Stanton, Bury St Edmunds, Suffolk, IP31 2DL |
| DUGUID, Moray Stuart RESIGNED | Director | 03 Dec 1998 | 03 Sep 2010 | United Kingdom | January 1948 | Cromerwood Cottage, Little Gaddesden, Hertfordshire, HP4 1PN |
| GOLDING, Andrew Shawn RESIGNED | Director | 14 Dec 2000 | 28 Dec 2023 | England | March 1964 | Petrotechnik House, Olympus Close, Whitehall Industrial Estate, Ipswich, Suffolk, IP1 5LN |
| HAINES, John RESIGNED | Director | 03 Sep 2010 | 05 Nov 2018 | United States | July 1963 | Petrotechnik House, Olympus Close, Whitehall Industrial Estate, Ipswich, Suffolk, IP1 5LN |
| HUGHES, Angela RESIGNED | Director | 03 Sep 2010 | 21 Dec 2016 | Usa | September 1972 | Petrotechnik House, Olympus Close, Whitehall Industrial Estate, Ipswich, Suffolk, IP1 5LN |
| HUMPHREY, Lisa Jane RESIGNED | Director | 07 Apr 1998 | 30 Nov 2000 | | July 1968 | 22 Oxford Road, Ipswich, Suffolk, IP4 1NL |
| KENNEY, Donald RESIGNED | Director | 03 Sep 2010 | 21 Dec 2016 | United States | July 1960 | Petrotechnik House, Olympus Close, Whitehall Industrial Estate, Ipswich, Suffolk, IP1 5LN |
| LEE, Geoffrey Ronald RESIGNED | Director | 09 Apr 2008 | 09 Feb 2011 | United Kingdom | April 1957 | 12, Dry Dock, Wivenhoe, Colchester, Essex, CO7 9TE |
| LEE, John RESIGNED | Director | 29 May 1992 | 15 Jun 2000 | England | September 1950 | 36 Maids Causeway, Cambridge, CB5 8DD |
| MALEY, Stephen Paul RESIGNED | Director | 20 Nov 2006 | 16 Jan 2009 | | June 1962 | Millers Barn, Foxes Lane Mendham, Harleston, Norfolk, IP20 0PE |
| MUIR, Alex RESIGNED | Director | 13 Sep 2004 | 15 Apr 2005 | | October 1961 | Oakley House, School Road, Foulden, Norfolk, IP26 5AJ |
| OWENS, Glyn Anthony Valentine RESIGNED | Director | 20 Apr 1999 | 09 Feb 2011 | United Kingdom | February 1952 | The Guildhall, Ipswich Road, Yaxley, Eye, Suffolk, IP23 8BS |
| SENGSTACK, Gregory RESIGNED | Director | 03 Sep 2010 | 03 Aug 2017 | Usa | June 1958 | Petrotechnik House, Olympus Close, Whitehall Industrial Estate, Ipswich, Suffolk, IP1 5LN |
| WRIGHT, Wayne Clifton Augustus, Dr RESIGNED | Director | 07 Apr 1998 | 22 Sep 2000 | England | March 1963 | Shekinah 29 Cornwallis Avenue, Linton, Maidstone, Kent, ME17 4BW |
| COMBINED NOMINEES LIMITED RESIGNED | Nominee Director | 23 Jul 1991 | 17 Sep 1991 | | | Victoria House, 64 Paul Street, London, EC2A 4NA |
| COMBINED SECRETARIAL SERVICES LIMITED RESIGNED | Nominee Director | 23 Jul 1991 | 17 Sep 1991 | | | Victoria House, 64 Paul Street, London, EC2A 4NG |