| PENG-TSEUNG, Chiao-Li ACTIVE | Director | 13 Sep 2023 | | United Kingdom | June 1975 | Unit 1, Waverley Industrial Estate, Hailsham Drive, Harrow, Middlesex, HA1 4TR, England |
| RENNIE, Nigel Forbes, Mr. ACTIVE | Director | 06 Jan 2020 | | England | July 1960 | Unit 1, Waverley Industrial Estate, Hailsham Drive, Harrow, Middlesex, HA1 4TR, England |
| WATSON, Jonathan C, Mr. ACTIVE | Director | 06 Jan 2020 | | United States | November 1984 | Unit 1, Waverley Industrial Estate, Hailsham Drive, Harrow, Middlesex, HA1 4TR, England |
| FLEMING, Stephen RESIGNED | Secretary | 11 Jul 2005 | 23 Jun 2006 | | | 96 Netherby Park, Weybridge, Surrey, KT13 0AG |
| OLLIS, Anthony Norman RESIGNED | Secretary | 25 Oct 1995 | 14 Dec 2000 | | | Westbury 6 Burkes Road, Beaconsfield, Buckinghamshire, HP9 1PB |
| RENNIE, Paul David RESIGNED | Secretary | | 16 Sep 1994 | | | White Lodge Les Grupieaux, St Peter, Jersey, Channel Islands, JE3 7ED |
| SMITH, Paul Alexander RESIGNED | Secretary | 23 Jun 2006 | 04 Aug 2017 | | | Unit 1, Waverley Business Park, Hailsham Drive, Harrow, HA1 4TR, United Kingdom |
| SMITH, Paul Alexander RESIGNED | Secretary | 24 Apr 2003 | 11 Jul 2005 | | | 43 Mount Pleasant, Aspley Guise, Milton Keynes, Buckinghamshire, MK17 8JZ |
| STONE, Kenneth Gordon RESIGNED | Secretary | 16 Sep 1994 | 26 May 1995 | | | 55 Mortons Fork, Blue Bridge, Milton Keynes, Buckinghamshire, MK13 0LA |
| TYE, Sheryl Anne RESIGNED | Secretary | 14 Dec 2000 | 20 Feb 2003 | | | 47 Sherrardspark Road, Welwyn Garden City, Hertfordshire, AL8 7LD |
| BANNON, Michael RESIGNED | Director | 01 Mar 1998 | 11 Feb 2000 | England | September 1961 | 34 Cranley Gardens, Muswell Hill, London, N10 3AP |
| BOLT, Nigel John RESIGNED | Director | 15 Aug 2002 | 31 Dec 2003 | | August 1963 | 15 Dunford Place, Binfield, Berkshire, RG42 4UJ |
| BROWN, Nigel RESIGNED | Director | 21 Dec 2004 | 06 Jan 2020 | United Kingdom | December 1957 | Unit 1, Waverley Business Park, Hailsham Drive, Harrow, HA1 4TR, United Kingdom |
| BROWN, Nigel RESIGNED | Director | 01 Mar 1998 | 12 Apr 2002 | United Kingdom | December 1957 | The Atrium 5 The Hop Kilns, Rock House Lane, Farnham, Surrey, GU10 1NP |
| COOLING, John Alfred RESIGNED | Director | | 19 Nov 2009 | England | April 1953 | 14 Bisham Gardens, Highgate, London, N6 6DD |
| FLEMING, Stephen RESIGNED | Director | 14 Sep 2004 | 23 Jun 2006 | | May 1969 | 96 Netherby Park, Weybridge, Surrey, KT13 0AG |
| HAFFERTY, John Joseph RESIGNED | Director | 25 Jan 2018 | 27 Feb 2019 | United States | July 1956 | Unit 1, Waverley Industrial Park, Hailsham Drive, Harrow, HA1 4TR, England |
| HOUGH, Edmund Alan, Dr RESIGNED | Director | 03 Nov 1997 | 23 Jun 2006 | England | November 1944 | Brambles Dean Oak Lane, Leigh, Reigate, Surrey, RH2 8PZ |
| MURPHY, Romana Manuela RESIGNED | Director | 06 Jan 2020 | 18 Mar 2022 | England | May 1978 | Unit 1, Waverley Business Park, Hailsham Drive, Harrow, HA1 4TR |
| PERKINS, Clifford Samuel RESIGNED | Director | 17 Dec 1998 | 19 Oct 2000 | | March 1953 | White Lodge, 8 Beechwood Drive, Marlow, Buckinghamshire, SL7 2DJ |
| REED, Shaun Cowell RESIGNED | Director | 15 Dec 2022 | 05 Apr 2023 | United Kingdom | September 1974 | Unit 1, Waverley Business Park, Hailsham Drive, Harrow, HA1 4TR |
| RENNIE, David Caie RESIGNED | Director | | 08 Feb 2001 | | May 1925 | 3a Wolsey Road, Moor Park, Northwood, Middlesex, HA6 2HN |
| RENNIE, Nigel Forbes RESIGNED | Director | 22 Aug 1994 | 23 Jun 2006 | | July 1960 | 3 Green Street, Chorleywood, Hertfordshire, WD3 5QS |
| RENNIE, Paul David RESIGNED | Director | | 23 Jun 2006 | Jersey | November 1957 | White Lodge Les Grupieaux, St Peter, Jersey, Channel Islands, JE3 7ED |
| SMITH, Paul Alexander RESIGNED | Director | 09 Sep 2009 | 04 Aug 2017 | England | August 1965 | Unit 1, Waverley Business Park, Hailsham Drive, Harrow, HA1 4TR, United Kingdom |
| TYE, Sheryl Anne RESIGNED | Director | 14 Dec 2000 | 20 Feb 2003 | England | August 1957 | 47 Sherrardspark Road, Welwyn Garden City, Hertfordshire, AL8 7LD |
| WILKINSON, Gregory Lupton RESIGNED | Director | 06 Jan 2020 | 25 Sep 2024 | United States | January 1975 | Unit 1, Waverley Industrial Estate, Hailsham Drive, Harrow, Middlesex, HA1 4TR, England |