| ANTHONY, Thomas Gavin ACTIVE | Director | 02 Dec 2021 | | England | January 1956 | 8, Research Way, Derriford, Plymouth, PL6 8BU, England |
| ATKEY, Peter Alan ACTIVE | Director | 26 Oct 2022 | | England | April 1956 | 8, Research Way, Derriford, Plymouth, PL6 8BU |
| SMERDON, Gary Randall ACTIVE | Director | 01 Jan 2013 | | England | October 1964 | 8, Research Way, Derriford, Plymouth, PL6 8BU, England |
| DAWSON, Richard Andrew RESIGNED | Secretary | 21 Dec 1994 | 29 Jul 1999 | | | 32 Follaton Road, Totnes, Devon, TQ9 5ND |
| SEARLE, David Ian RESIGNED | Secretary | 29 Jul 1999 | 24 Jan 2001 | | | Goodameavy Barton, Roborough, Plymouth, Devon, PL6 7AP |
| STILLMAN, Anna Louise RESIGNED | Secretary | 24 Nov 2009 | 31 Aug 2013 | | | Hyperbaric Medical Centre, Research Way, Tamar Science Park, Plymouth, PL6 8BU |
| WATE, Richard Stuart Allan RESIGNED | Secretary | 15 Oct 2013 | 20 Aug 2018 | | | 8, Research Way, Derriford, Plymouth, PL6 8BU, England |
| CURZON CORPORATE SECRETARIES LTD RESIGNED | Secretary | 24 Jan 2001 | 24 Nov 2009 | | | Ashford House, Grenadier Road, Exeter, Devon, EX1 3LH |
| FIRST SECRETARIES LIMITED RESIGNED | Nominee Secretary | 21 Dec 1994 | 31 Dec 1994 | | | 72 New Bond Street, London, W1S 1RR |
| ATKEY, Peter Alan RESIGNED | Director | 22 Jun 2002 | 01 Jan 2013 | England | April 1956 | 7 Longmead Road, Paignton, Devon, TQ3 1AW |
| BAKER, Ian RESIGNED | Director | 18 Jun 2001 | 17 Sep 2001 | | January 1939 | 30 Sycamore Drive, Torpoint, Cornwall, PL11 2NA |
| COX, Stephen John RESIGNED | Director | 21 Oct 2014 | 02 Dec 2021 | England | December 1952 | 8, Research Way, Derriford, Plymouth, PL6 8BU, England |
| CROCKFORD, David RESIGNED | Director | 21 Dec 1994 | 28 Feb 2001 | | April 1956 | 5 The Fairway, Newton Ferrers, Plymouth, South Devon, PL8 1DW |
| CROSS, Maurice Robert, Doctor RESIGNED | Director | 21 Dec 1994 | 07 Sep 2001 | | March 1946 | 5 Furzehill Road, Heybrook Bay, Plymouth, Devon, PL9 0BT |
| DAWSON, Richard Andrew RESIGNED | Director | 21 Dec 1994 | 31 May 1999 | | December 1947 | 32 Follaton Road, Totnes, Devon, TQ9 5ND |
| LANG, Lynne Sarah RESIGNED | Director | 20 Dec 2005 | 26 Jan 2016 | England | February 1956 | 8, Research Way, Derriford, Plymouth, PL6 8BU, England |
| NEWSON, Lesley RESIGNED | Director | 14 Dec 2001 | 13 Dec 2005 | | July 1952 | 1 Standarhay Close, Elburton, Plymouth, PL9 8PL |
| PAINTER, Howard Noel RESIGNED | Director | 22 Jul 1999 | 05 Apr 2002 | England | January 1950 | The Firs Church Road, Crowle, Worcester, Worcestershire, WR7 4AX |
| THOMSON, Harry RESIGNED | Director | 22 Jul 1999 | 21 Jun 2002 | | September 1948 | 40 Henley Drive, Tamerton Foliot, Plymouth, Devon, PL5 4QB |
| WALBRIDGE, Shaun RESIGNED | Director | 26 Oct 2016 | 01 Mar 2022 | England | January 1957 | 8, Research Way, Derriford, Plymouth, PL6 8BU |
| FIRST DIRECTORS LIMITED RESIGNED | Nominee Director | 21 Dec 1994 | 21 Dec 1994 | | | 72 New Bond Street, London, W1S 1RR |