| BEST, Louise Helen ACTIVE | Secretary | 01 Feb 2016 | | | | Ascent 1, Aerospace Boulevard, Farnborough, GU14 6XW, England |
| BEST, Louise Helen ACTIVE | Director | 01 Feb 2016 | | England | January 1981 | Ascent 1, Aerospace Boulevard, Farnborough, GU14 6XW, England |
| LEFTWICH, Mark ACTIVE | Director | 01 Apr 2022 | | England | July 1978 | Ascent 1, Aerospace Boulevard, Farnborough, GU14 6XW, England |
| ARMSTRONG, Martin Robert RESIGNED | Secretary | 09 Mar 2009 | 01 Feb 2016 | | | 46 Ingram Road, Thornton Heath, Surrey, CR7 8EB |
| DODSWORTH, Brian RESIGNED | Secretary | 01 May 1992 | 07 Mar 1997 | | | 32a Kings Road, Emsworth, Hampshire, PO10 7HN |
| HOUSE, David Howard RESIGNED | Secretary | | 30 Apr 1992 | | | Acorns Lock Lane, Birdham, Chichester, West Sussex, PO20 7BA |
| PISHKO, Dorita Ann RESIGNED | Secretary | 01 Jul 2004 | 09 Mar 2009 | | | 209 Lockwood Road, Export, Pennsylvania, 15632, Usa |
| SELFE, David Ray RESIGNED | Secretary | 07 Mar 1997 | 28 May 1999 | | | 18 Littlepark Avenue, Havant, Hampshire, PO9 3QY |
| SHAW, Simon James Blouet RESIGNED | Secretary | 15 Oct 1999 | 20 Dec 1999 | | | Church House, 329 Catherington Lane, Waterlooville, Hampshire, PO8 0TE |
| WARD, John Christopher William RESIGNED | Secretary | 20 Dec 1999 | 01 Jul 2004 | | | Lomer Farmhouse, Warnford, Southampton, Hampshire, SO32 3LJ |
| REED SMITH CORPORATE SERVICES LIMITED RESIGNED | Secretary | 01 Jul 2004 | 11 Dec 2008 | | | Minerva House, 5 Montague Close, London, SE1 9BB |
| ARMSTRONG, Martin Robert RESIGNED | Director | 01 Nov 2010 | 01 Feb 2016 | England | July 1956 | Philips Centre, Guildford Business Park, Guildford, Surrey, GU2 8XG, England |
| ARMSTRONG, Martin Robert RESIGNED | Director | 31 Dec 2008 | 09 Mar 2009 | England | July 1956 | 46 Ingram Road, Thornton Heath, Surrey, CR7 8EB |
| ATWILL, John Angus RESIGNED | Director | 09 Mar 2009 | 01 Nov 2010 | United Kingdom | April 1952 | 35 Hunters Chase, Caversham, Berkshire, RG4 7XH |
| BARRETT, Mark Shane RESIGNED | Director | 23 Aug 1999 | 02 Jan 2001 | England | November 1960 | Orchard Cottage 38 Alma Lane, Farnham, Surrey, GU9 0LH |
| BEVEVINO, Daniel J RESIGNED | Director | 01 Jul 2004 | 31 Dec 2008 | | October 1959 | 30 Lynn Way, Indiana, 15701, Usa |
| BURKE, John Vernon RESIGNED | Director | 10 May 1994 | 25 Aug 1998 | | June 1944 | Silver Copse 48 Linksway, Northwood, Middlesex, HA6 2XB |
| DENYER, Jonathan Stanley Harold RESIGNED | Director | 18 Jun 1992 | 01 Jul 2004 | United Kingdom | October 1960 | Sunnyside West Way, West Broyle, Chichester, West Sussex, PO19 3PW |
| DODSWORTH, Brian RESIGNED | Director | 15 Apr 1994 | 07 Mar 1997 | England | November 1963 | 32a Kings Road, Emsworth, Hampshire, PO10 7HN |
| FOSKETT, Robert Throssell RESIGNED | Director | 01 Dec 1993 | 14 Apr 1994 | England | July 1947 | Huntlands Farm, Birdham, Chichester, West Sussex, PO20 7BY |
| FULTON, Steven P RESIGNED | Director | 01 Jul 2004 | 31 Dec 2008 | | February 1959 | 259 Saunders Station Road, Trafford, Pennsylvania, 150858, Usa |
| HACKER, Ann Veronica RESIGNED | Director | 24 Sep 1996 | 25 Aug 1998 | | June 1951 | Badgers Wood, Beaver Lane, Yateley, Hampshire, GU46 6XJ |
| HOUSE, David Howard RESIGNED | Director | | 14 Apr 1994 | | February 1942 | Acorns Lock Lane, Birdham, Chichester, West Sussex, PO20 7BA |
| KIRBY, Mark Richard RESIGNED | Director | | 29 Oct 2002 | England | January 1957 | 37 Bowes Hill, Rowlands Castle, Hampshire, PO9 6BP |
| LISLE, John Jerome RESIGNED | Director | 29 Oct 2002 | 01 Jul 2004 | | January 1964 | The Firs, Misbourne Avenue, Chalfont St Peter, Buckinghamshire, SL9 0PF |
| MCGUIRE, Simon RESIGNED | Director | 07 May 2002 | 01 Jul 2004 | | | Wildwood 6 Oatlands Mere, Weybridge, Surrey, KT13 9PD |
| MESHER, Neil Anthony RESIGNED | Director | 15 Sep 2020 | 01 Apr 2022 | England | November 1966 | Ascent 1, Aerospace Boulevard, Farnborough, GU14 6XW, England |
| MICLOT, John L RESIGNED | Director | 01 Jul 2004 | 31 Dec 2008 | | March 1959 | 5005 Old Orchard Lane, Gibsonia, Pennsylvania, 15044, Usa |
| MOYLAN, John Colman RESIGNED | Director | 19 Oct 1998 | 01 Jul 2004 | | December 1964 | 67 Victoria Road, Emsworth, Hampshire, PO10 7NJ |
| SHAW, Simon James Blouet RESIGNED | Director | 14 Jul 1997 | 06 Apr 2003 | England | February 1965 | Church House, 329 Catherington Lane, Waterlooville, Hampshire, PO8 0TE |
| TRANTER, Graham RESIGNED | Director | 31 Dec 2015 | 15 Sep 2020 | United Kingdom | November 1960 | Philips Centre, Guildford Business Park, Guildford, Surrey, GU2 8XH, England |
| TRANTER, Graham RESIGNED | Director | 31 Dec 2008 | 01 Nov 2010 | United Kingdom | November 1960 | HA4 |
| VIVASH, Hayden Paul RESIGNED | Director | 01 Nov 2010 | 15 Dec 2015 | England | February 1965 | Philips Centre, Guildford Business Park, Guildford, Surrey, GU2 8XH |
| WALTERS, Edward James RESIGNED | Director | 07 May 2002 | 01 Jul 2004 | | October 1956 | 4 Lucerne Court, Aldwick Grange, Bognor Regis, West Sussex, PO21 4XL |
| WARD, John Christopher William RESIGNED | Director | 20 Dec 1999 | 01 Jul 2004 | | January 1961 | Lomer Farmhouse, Warnford, Southampton, Hampshire, SO32 3LJ |
| WOODCOCK, Ashley Arthur, Professor RESIGNED | Director | | 14 Nov 1993 | England | April 1951 | 67 Bankhall Lane, Hale, Cheshire, WA15 0LN |