| FERRIS, Neil ACTIVE | Director | 01 Apr 2025 | | England | March 1981 | Enigma Business Park, Grovewood Road, Malvern, WR14 1XZ, England |
| MULDER, Tom Alexander ACTIVE | Director | 05 Jun 2017 | | Netherlands | August 1969 | Enigma Business Park, Grovewood Road, Malvern, WR14 1XZ, England |
| CAMPBELL, David James, Dr RESIGNED | Secretary | 19 Mar 1997 | 21 May 1998 | | | St Wulstans Church Lane, Tibberton, Droitwich, Worcestershire, WR9 7NW |
| MONTANARO, Richard Haldane Stokes RESIGNED | Secretary | 13 Jul 1992 | 17 Mar 1993 | | | 29 Northumberland Road, Leamington Spa, Warwickshire, CV32 6HE |
| PARSONS, Graham John RESIGNED | Secretary | 17 Mar 1993 | 19 Mar 1997 | | | Derwent Ridge, Bullhurst Lane Weston Underwood, Ashbourne, Derbyshire, DE6 4PA |
| PRESTIDGE, Robert William RESIGNED | Secretary | 21 May 1998 | 31 Mar 2020 | | | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ |
| TIDSALL, David Peter Charles RESIGNED | Secretary | | 13 Jul 1992 | | | 50 Anglesey Avenue, Cove, Farnborough, Hampshire, GU14 8SQ |
| ASLIN, David Wyndham RESIGNED | Director | 11 Mar 1993 | 30 Sep 1994 | | July 1950 | Rock House 48 High Street, Frodsham, Warrington, Cheshire, WA6 7HE |
| BISHOP, Diana Jane, Dr RESIGNED | Director | 21 Feb 1994 | 12 Mar 2018 | England | May 1958 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, United Kingdom |
| BLAIR, Steven RESIGNED | Director | 30 Aug 2022 | 17 Jan 2025 | United Kingdom | May 1981 | Enigma Business Park, Grovewood Road, Malvern, WR14 1XZ, England |
| BRAGGINTON, Alan Richard RESIGNED | Director | | 12 May 2010 | England | May 1945 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, United Kingdom |
| BURMICZ, John Stefan, Dr RESIGNED | Director | | 17 Dec 1992 | | May 1955 | 8 Ways End, Beech Avenue, Camberley, Surrey, GU15 2JU |
| CAMPBELL, David James, Dr RESIGNED | Director | 29 Jul 1994 | 21 May 1998 | England | December 1947 | St Wulstans Church Lane, Tibberton, Droitwich, Worcestershire, WR9 7NW |
| COOPER, Terry Alan RESIGNED | Director | 11 Mar 1993 | 21 May 1998 | | December 1955 | Kettlepin Cottage, Rectory Lane, Madresfield, Worcestershire, WR13 5AB |
| CURRAN, John Patrick Stewart RESIGNED | Director | 13 Jul 1992 | 08 May 1994 | | June 1940 | 8 Dawney Drive, Sutton Coldfield, West Midlands, B75 5JA |
| DAVIDSON, Gregory Paul RESIGNED | Director | 06 May 1995 | 30 Sep 1998 | | November 1951 | 3 The Swallow, Wellington Heath, Ledbury, Herefordshire, HR8 1NA |
| EASTWELL, Bernard Albert RESIGNED | Director | | 13 Jul 1992 | | July 1927 | 29 Greenridge, Brighton, East Sussex, BN1 5LT |
| HALL, Richard William RESIGNED | Director | 01 Dec 2003 | 31 Oct 2005 | United Kingdom | February 1961 | 4 Silver Close, Minety, Malmesbury, Wiltshire, SN16 9QT |
| HORDER, Steven Francis Axtell RESIGNED | Director | 01 Jul 2020 | 30 Aug 2022 | United Kingdom | November 1972 | Enigma Business Park, Grovewood Road, Malvern, WR14 1XZ, England |
| HOWARTH, Craig Timothy RESIGNED | Director | 08 Mar 2001 | 14 Aug 2005 | | October 1960 | 28 King Edwards Road, Malvern Wells, Worcestershire, WR14 4AJ |
| HUGHES, Christopher Martin RESIGNED | Director | | 17 Mar 1993 | | November 1946 | Kettlepin House Marley Drive, Lympstone, Devon, EX8 5DY |
| INNOCENT, Rowena Dawn RESIGNED | Director | 10 Aug 2011 | 12 Mar 2018 | England | September 1970 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, United Kingdom |
| LEWIS, Edgar Neil RESIGNED | Director | 02 Jan 2009 | 10 Aug 2011 | Usa | September 1957 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, United Kingdom |
| MARTIN, John RESIGNED | Director | 01 Jan 2007 | 11 Apr 2017 | England | August 1958 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, United Kingdom |
| MCCASKIE, John Simon RESIGNED | Director | 12 May 2010 | 20 Jun 2014 | United Kingdom | June 1963 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, United Kingdom |
| MONTANARO, Richard Haldane Stokes RESIGNED | Director | 13 Jul 1992 | 10 Dec 1992 | England | August 1955 | 29 Northumberland Road, Leamington Spa, Warwickshire, CV32 6HE |
| O'LIONAIRD, Eoghan Pol RESIGNED | Director | 24 Mar 2014 | 25 Apr 2019 | Netherlands | September 1966 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, United Kingdom |
| OXBOROUGH, Elizabeth Henrietta RESIGNED | Director | 14 Jan 2025 | 01 Apr 2025 | England | September 1976 | Enigma Business Park, Grovewood Road, Malvern, WR14 1XZ, England |
| PLANT, Andrew John RESIGNED | Director | 11 Mar 1993 | 28 Jul 1993 | | March 1963 | 53 Monastery Drive, Solihull, West Midlands, B91 1DW |
| PRESTIDGE, Robert William RESIGNED | Director | 21 May 1998 | 31 Mar 2020 | United Kingdom | November 1960 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, United Kingdom |
| ROBERTS, Duncan Morgan RESIGNED | Director | 24 Jun 1998 | 12 Mar 2018 | England | January 1957 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, United Kingdom |
| ROBERTS, Duncan Morgan RESIGNED | Director | 11 Mar 1993 | 16 Sep 1994 | England | January 1957 | Wychford End, Cradley, Malvern, Worcestershire, WR13 5NF |
| SAHOTA, Sulakhan RESIGNED | Director | 13 Jul 1992 | 10 Dec 1992 | | March 1960 | Shrewley Lodge Farm Five Ways, Hatton, Warwick, Warwickshire, CV35 7JD |
| SIMCOCK, Giles RESIGNED | Director | 01 Oct 2014 | 12 Mar 2018 | England | October 1971 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ |
| SNOWDON, Clive John RESIGNED | Director | 13 Jul 1992 | 10 Dec 1992 | United Kingdom | June 1953 | New End Barn, Spernall Lane Great Alne, Alcester, Warwickshire, B49 6JD |
| THOMPSON, David William RESIGNED | Director | 28 Jul 1993 | 29 Jul 1994 | England | June 1959 | 70 Broadway, Earlsdon, Coventry, West Midlands, CV5 6NU |
| WALKER, Paul Iran RESIGNED | Director | 05 Jan 1994 | 05 Jun 2017 | England | October 1951 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, United Kingdom |
| WATSON, David John RESIGNED | Director | | 16 Sep 1994 | England | September 1951 | The Spinney Picken End, Hanley Swan, Worcester, Worcestershire, WR8 0DQ |
| WEBSTER, James Charles RESIGNED | Director | 21 Mar 1997 | 24 Mar 2014 | England | June 1950 | Malvern Instruments Ltd, Enigma Business Park, Grovewood Road, Malvern, Worcestershire, WR14 1XZ, United Kingdom |
| WILSON, James Barry RESIGNED | Director | 11 Mar 1993 | 09 Jul 1993 | | March 1953 | 37 Cowleigh Bank, Malvern, Worcestershire, WR14 1QP |
| HENLEY INVESTMENT MANAGEMENT LIMITED RESIGNED | Director | 10 Dec 1992 | 26 Mar 1998 | | | Fairey Group Plc, Station Road, Egham, Surrey, TW20 9LB |
| HOCKLEY COURT INVESTMENT MANAGEMENT LIMITED RESIGNED | Director | 10 Dec 1992 | 26 Mar 1998 | | | Fairey Group Plc, Station Road, Egham, Surrey, TW20 9LB |