| GOURLAY, Richard Ian ACTIVE | Secretary | 01 Jul 2005 | | | | 20 Tavistock Terrace, London, N19 4DB |
| GOURLAY, Richard Ian ACTIVE | Director | 01 May 2005 | | United Kingdom | October 1956 | 20 Tavistock Terrace, London, N19 4DB |
| TERRY, Barnaby Bruce Landen ACTIVE | Director | 20 Mar 2014 | | United Kingdom | November 1963 | 20 Commerce Road, Lynch Wood, Peterborough, PE2 6LR, United Kingdom |
| COMPTON, Paul Robert RESIGNED | Secretary | 01 Sep 1998 | 12 Mar 1999 | | | 36 Lancaster Road, London, N4 4PR |
| HALLALA, Mark John RESIGNED | Secretary | 17 Jun 2002 | 30 Jun 2003 | | | 7 Beauchamp Road, East Molesey, Surrey, KT8 0PA |
| VIPOND, Rosemary Hill RESIGNED | Secretary | 12 Mar 1999 | 17 Jun 2002 | | | 5 The Park, London, N6 4EU |
| WILLEY, Keith James RESIGNED | Secretary | 30 Sep 2003 | 30 Jun 2005 | | | 36 Cleveland Road, Barnes, London, SW13 0AB |
| SWIFT INCORPORATIONS LIMITED RESIGNED | Nominee Secretary | 06 Aug 1998 | 01 Sep 1998 | | | 26, Church Street, London, NW8 8EP |
| ATHERTON, Paul David, Dr RESIGNED | Director | 01 May 2001 | 17 Apr 2023 | United Kingdom | May 1953 | Imperial Innovations, Imperial College Exhibition Road, London, SW7 2AZ |
| BATES, Alexander John RESIGNED | Director | 01 Sep 1998 | 02 Sep 2019 | United Kingdom | August 1950 | 47 Linhope Street, London, NW1 6HL |
| BRIMACOMBE, John Mark RESIGNED | Director | 20 Mar 2014 | 08 Jun 2026 | United States | August 1969 | 58-60, Fitzroy Street, London, W1T 5BU, England |
| CAMERON, Malcolm Ian RESIGNED | Director | 01 Sep 1998 | 29 Jan 2002 | England | December 1941 | 7 Well View, Stoke Row, Henley On Thames, Oxfordshire, RG9 5QQ |
| DE TAURINES, Christophe Gailly RESIGNED | Director | 09 Jun 2009 | 18 Oct 2018 | United Kingdom | December 1964 | 12, Gloucester Square, London, W2 2TB |
| LAING, Ian Michael RESIGNED | Director | 11 Apr 2000 | 11 Dec 2013 | United Kingdom | December 1946 | 4 Charlbury Road, Oxford, OX2 6UT |
| MACPHERSON, Ewen Cameron Stewart RESIGNED | Director | 14 Dec 1999 | 28 May 2002 | | January 1942 | 61 Holland Park Mews, London, W11 3SS |
| MURPHY, Michael RESIGNED | Director | 11 Dec 2013 | 17 Sep 2019 | England | January 1965 | 18-20, Huntsworth Mews, London, NW1 6DD, England |
| MURRAY, Dale Jane RESIGNED | Director | 25 Jun 2012 | 15 Apr 2019 | United Kingdom | January 1970 | 18-20, Huntsworth Mews, London, NW1 6DD, United Kingdom |
| RANDEREE, Shabir Ahmed RESIGNED | Director | 11 Dec 2013 | 17 Sep 2019 | England | March 1962 | Sussex Place Ventures, 18-20 Huntsworth Mews, London, NW1 6DD, England |
| STODDART, Michael Craig RESIGNED | Director | 10 Jul 2002 | 27 Apr 2004 | United Kingdom | March 1932 | Compton House, Kinver, Stourbridge, West Midlands, DY7 5LY |
| STODDART, Michael Craig RESIGNED | Director | 16 Sep 1998 | 29 Jan 2002 | United Kingdom | March 1932 | Compton House, Kinver, Stourbridge, West Midlands, DY7 5LY |
| THORP, David RESIGNED | Director | 08 May 2004 | 03 Sep 2019 | England | July 1945 | 16 Longdown, Guildford, Surrey, GU4 8PP |
| WILLEY, Keith James RESIGNED | Director | 14 Mar 2000 | 30 Jun 2005 | England | April 1962 | 36 Cleveland Road, Barnes, London, SW13 0AB |
| WILLIAMS, Martyn Courtney Bailey RESIGNED | Director | 01 Sep 1998 | 19 Sep 2012 | England | May 1963 | 9 Chadlington Road, Oxford, OX2 6SY |
| INSTANT COMPANIES LIMITED RESIGNED | Nominee Director | 06 Aug 1998 | 01 Sep 1998 | | | 1, Mitchell Lane, Bristol, Avon, BS1 6BU |