| PARSONS-JAEGER, Deanna ACTIVE | Secretary | 25 Feb 2025 | | | | The Gro, Newtown, Powys, The Gro, Newtown, Powys, SY16 3BE, Wales |
| MAYOLLE, Rony ACTIVE | Director | 02 Sep 2022 | | France | August 1982 | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| PICKERING, Anthony Paul ACTIVE | Director | 25 Feb 2019 | | England | September 1961 | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| BIRKS, Christopher RESIGNED | Secretary | 15 Jul 1996 | 29 Apr 1997 | | | Rhiannys 19 Adelaide Drive, Red Bank, Welshpool, Powys, SY21 7RQ |
| HAINES, Richard Leslie RESIGNED | Secretary | | 15 Jul 1996 | | | 8 Wainwright Drive, Frome, Somerset, BA11 2XP |
| HEDGES, Keith RESIGNED | Secretary | 16 Jan 2015 | 31 Oct 2017 | | | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| HUMPHREYS, Simon David RESIGNED | Secretary | 02 Sep 2022 | 02 Jun 2023 | | | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| MARTIN, John Paul RESIGNED | Secretary | 05 Jun 2023 | 25 Feb 2026 | | | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| OWEN, Sandra Julie RESIGNED | Secretary | 29 Apr 1997 | 13 Nov 1998 | | | 45 Velvet Lawn Road, New Milton, Hampshire, BH25 5GE |
| PIMM-JONES, Rachel Ann RESIGNED | Secretary | 18 Apr 2019 | 29 Jul 2022 | | | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| SIMMONDS, Anthony RESIGNED | Secretary | 01 Nov 2017 | 18 Apr 2019 | | | Control Techniques Dynamics Limited, South Way, Andover, SP10 5AB, England |
| TURTLE, Peter Leslie RESIGNED | Secretary | 13 Nov 1998 | 16 Jan 2015 | | | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| BOUGHTWOOD, Martin Hugh RESIGNED | Director | 01 Oct 1991 | 31 Oct 1999 | | April 1954 | The Old Dairy, Fyfield Road, Shipton Bellinger, Hampshire, SP9 7YQ |
| COUPART, Eric RESIGNED | Director | 24 May 2011 | 25 Feb 2019 | France | August 1959 | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| CURRAN, Kevin Michael RESIGNED | Director | | 31 Dec 1995 | United Kingdom | July 1948 | Trelydan Hall, Trelydan, Welshpool, Powys, SY21 9HT |
| DE LA CODRE, Guillaume RESIGNED | Director | 22 Jul 1999 | 25 Feb 2019 | France | May 1963 | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| DRURY, William, Dr RESIGNED | Director | 01 Jan 1996 | 24 Nov 1998 | England | May 1955 | 84 Crowmeole Lane, Radbrook, Shrewsbury, Shropshire, SY3 8AY |
| GALLION, Mark RESIGNED | Director | 14 Oct 1996 | 01 Dec 1997 | | November 1960 | 8000 West Florrissant, St Louis, Missouri, 63136, Usa |
| HAINES, Richard Leslie RESIGNED | Director | | 15 Jul 1996 | | September 1955 | 8 Wainwright Drive, Frome, Somerset, BA11 2XP |
| HALLEY, James Anthony RESIGNED | Director | 25 Feb 2019 | 18 Apr 2019 | Switzerland | November 1975 | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| HEDGES, Keith RESIGNED | Director | 09 Nov 1999 | 25 Feb 2019 | England | December 1951 | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| IORI, Ido RESIGNED | Director | | 25 Jun 1991 | | February 1942 | Via Michelino Da Besozzo, No 6 Milano 20155, FOREIGN, Italy |
| JAYASOMA, Sujitha Mayura, Dr RESIGNED | Director | 25 Feb 2019 | 29 Jul 2022 | England | August 1976 | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| O'NEILL, Martin Anthony Gerald RESIGNED | Director | 02 Sep 2022 | 07 Apr 2025 | England | October 1978 | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| OWEN, Sandra Julie RESIGNED | Director | 29 Apr 1997 | 13 Nov 1998 | England | January 1960 | 45 Velvet Lawn Road, New Milton, Hampshire, BH25 5GE |
| PELTIER, Francois Paul RESIGNED | Director | 22 Jul 1999 | 03 May 2011 | France | September 1942 | South Way, Walworth Industrial Estate, Andover, Hampshire, SP10 5AB |
| REED, Terence Hamilton RESIGNED | Director | | 31 Mar 1992 | | February 1931 | Jubilee House, Smannell, Andover, Hampshire, SP11 6JW |
| ROBINS, Michael George RESIGNED | Director | 01 Jan 1996 | 14 Oct 1996 | United Kingdom | September 1946 | Milford Hall, Milford, Shrewsbury, Salop, SY4 2JU |
| ROELAND, Joannes Baptista RESIGNED | Director | 21 Aug 1996 | 01 Oct 1997 | | October 1939 | Oudendijk 11a, Strijen, 3291 LM, Netherlands |
| ROELAND, Joannes Bapista RESIGNED | Director | | 30 Sep 1994 | | October 1939 | Vourbaken, 76 Nieww Beikland 326yle, FOREIGN, Netherlands |
| SMITH, Robert John RESIGNED | Director | | 31 Mar 1993 | | May 1941 | Rose Rise, Cadley Road Collingbourne Ducis, Marlborough, Wilts, SN8 3EB |
| VANDORMAEL, Willy Gerard Edmond RESIGNED | Director | 11 Dec 1998 | 31 Aug 2001 | Switzerland | November 1946 | Molenbroek 2/A, 3730 Hoeselt, Belgium |
| WERSON, Michael John, Dr RESIGNED | Director | | 31 Oct 1993 | England | February 1947 | 6 Oakwood Road, Chandlers Ford, Eastleigh, Hampshire, SO53 1LU |