| SIDDLE, Nathan James ACTIVE | Secretary | 01 Apr 2025 | | | | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| FREER, Samantha Jayne ACTIVE | Director | 01 Jun 2024 | | England | January 1974 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| KOMAKI, Kenji ACTIVE | Director | 01 Apr 2019 | | Japan | August 1958 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| MIYAMOTO, Satoru ACTIVE | Director | 01 Sep 2020 | | Japan | October 1967 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| RODGERS, Anthony ACTIVE | Director | 02 Dec 2024 | | United States | July 1986 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| SOMERVILLE, David ACTIVE | Director | 01 Sep 2022 | | England | April 1962 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| TANAKA, Hiroshi ACTIVE | Director | 01 Sep 2025 | | Japan | November 1971 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| COOKE, Norman David RESIGNED | Secretary | 31 Jul 2000 | 31 Mar 2025 | | | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| STELL, Timothy John RESIGNED | Secretary | 01 May 1999 | 31 Jul 2000 | | | 61 Spring Grove, Loughton, Essex, IG10 4QE |
| HACKWOOD SECRETARIES LIMITED RESIGNED | Nominee Secretary | 21 Sep 1998 | 01 May 1999 | | | One Silk Street, London, EC2Y 8HQ |
| ANSCOMBE, Simon James RESIGNED | Director | 16 Nov 2020 | 31 May 2024 | England | April 1981 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| BARNES, Stuart Peter RESIGNED | Director | 17 Mar 2014 | 30 Jul 2015 | England | May 1962 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| BAXTER, Douglas James RESIGNED | Director | 31 May 2000 | 31 May 2002 | United Kingdom | January 1962 | 40 Howard Drive, Chelmer Village, Chelmsford, Essex, CM2 6PE |
| BEAUDRY, Joseph Edward RESIGNED | Director | 16 Nov 2017 | 15 Oct 2018 | United States | November 1975 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| CAPERS, Stephen RESIGNED | Director | 01 Sep 2020 | 31 Aug 2022 | England | January 1967 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| CHAPMAN, James RESIGNED | Director | 13 Sep 2010 | 17 Aug 2012 | England | September 1952 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| COOPER, Stuart James RESIGNED | Director | 04 Oct 2012 | 30 Jul 2015 | England | August 1967 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| COUCH, Martin Victor RESIGNED | Director | 05 Jul 2012 | 30 Jul 2015 | England | February 1963 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| FANCOURT, Colin John RESIGNED | Director | 01 May 1999 | 28 Jun 2004 | | February 1950 | The Old Vicarage, Treneglos, Launceston, Cornwall, PL15 8UQ |
| FUMEI, Sandra RESIGNED | Director | 16 Oct 2018 | 15 Nov 2020 | United States | April 1978 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| HARWOOD, Jonathan Alexander RESIGNED | Director | 23 Jan 2003 | 17 Sep 2010 | England | March 1955 | Dainton House Dainton, Ipplepen, Newton Abbot, Devon, TQ12 5TZ |
| HENDERSON, Geoffrey Thomas RESIGNED | Director | 28 Jun 2004 | 05 Jan 2009 | | August 1965 | 33 Seaton Way, Crapstone, Yelverton, Devon, PL20 7UZ |
| HOLMES, Christopher Edward RESIGNED | Director | 05 Jan 2009 | 01 Jun 2010 | | July 1963 | 88, Wildwood Drive, Avon, Connecticut, CT. 06001, United States Of America |
| HOZAKI, Kazuo RESIGNED | Director | 29 Jun 2005 | 31 Dec 2012 | Japan | December 1951 | 3-9-2-505 Sakashita, Itabashi, Tokyo, 174-0043, Japan |
| ISHIMARU, Shogo RESIGNED | Director | 16 Oct 2018 | 31 Aug 2025 | Japan | September 1963 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| IWASHITA, Shigeki RESIGNED | Director | 29 Jun 2010 | 26 Jun 2014 | Japan | March 1958 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| KOMAKI, Kenji RESIGNED | Director | 26 Jun 2014 | 15 Oct 2018 | Japan | August 1958 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| LOFTUS, Gary John, Vice President & Gen Mgr RESIGNED | Director | 01 Jun 2010 | 04 Jul 2010 | Usa | December 1958 | Silicn Sensing Systems Limited, Clittaford Road, Southway,, Plymouth, Devon, PL6 6DE |
| LONGDEN, Ian Martyn RESIGNED | Director | 14 May 2004 | 05 Jul 2012 | England | March 1957 | 15 Watts Road, Tavistock, Devon, PL19 8LF |
| LOTT, Colleen Alaise RESIGNED | Director | 31 Jul 2015 | 15 Nov 2017 | Usa | July 1978 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| MINAMI, Hiroaki RESIGNED | Director | 09 Jan 2013 | 31 Aug 2020 | Japan | April 1962 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| NAKAMURA, Hiroaki RESIGNED | Director | 01 May 1999 | 29 Jun 2005 | | June 1942 | 3-8-20 Kitabatake, Abeno-Ku, Osaka, Japan, FOREIGN |
| NEWMAN, Geoffrey Kenneth RESIGNED | Director | 25 Aug 2016 | 31 Aug 2020 | United States | January 1958 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| NOVAK, Eric Dale RESIGNED | Director | 31 Jul 2015 | 24 Aug 2016 | United States | August 1969 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| PETTIT, Anthony Michael RESIGNED | Director | 01 May 1999 | 23 Jan 2003 | | August 1957 | Meouse, Main Road, Bicknacre, Chelmsford, Essex, CM3 4HA |
| PINDARD, Kevin RESIGNED | Director | 31 Jul 2015 | 31 Dec 2022 | England | September 1967 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| RANDALL, Nigel John RESIGNED | Director | 01 May 1999 | 31 May 2000 | | May 1943 | West Hill Manor, The Crescent Crapstone, Yelverton, Devon, PL20 7PS |
| SHIOTANI, Hisao RESIGNED | Director | 01 May 1999 | 28 Jun 2010 | | June 1946 | 2-18-9 Harumidai Sakai, Osaka, Japan, FOREIGN |
| SQUIRES, David Hamilton RESIGNED | Director | 31 May 2002 | 14 May 2004 | | October 1963 | 3 Carlingnose View, North Queensferry, Fife, KY11 1EZ |
| TAKAHASHI, Ayumu RESIGNED | Director | 26 Jun 2014 | 31 Mar 2019 | Japan | January 1959 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| TAOKA, Yoshio RESIGNED | Director | 29 Jun 2010 | 27 Jun 2013 | Japan | August 1954 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| TOKUE, Rinzo RESIGNED | Director | 01 May 1999 | 28 Jun 2010 | | May 1946 | 1-3-8 Kitarokkodai, Nishinomiya Hyogo, Japan, FOREIGN |
| TOUGH, Alan John RESIGNED | Director | 10 Jan 2011 | 16 Mar 2014 | United Kingdom | June 1959 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| WALLACE, Andrew RESIGNED | Director | 01 Jan 2023 | 01 Dec 2024 | United States | July 1989 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE |
| YAGI, Ryozo RESIGNED | Director | 28 Jun 2013 | 26 Jun 2014 | Japan | February 1952 | Clittaford Road, Southway, Plymouth, Devon, PL6 6DE, United Kingdom |
| HACKWOOD DIRECTORS LIMITED RESIGNED | Nominee Director | 21 Sep 1998 | 01 May 1999 | | | One Silk Street, London, EC2Y 8HQ |