| PIPER, Thomas James ACTIVE | Secretary | 01 Jul 2019 | | | | Unit A, Brook Park East, Shirebrook, NG20 8RY, United Kingdom |
| ADEGOKE, Adedotun Ademola ACTIVE | Director | 14 Oct 2016 | | United Kingdom | June 1973 | Unit A, Brook Park East, Shirebrook, NG20 8RY, United Kingdom |
| DICK, Alastair Peter Orford ACTIVE | Director | 14 Mar 2019 | | United Kingdom | June 1983 | Unit A, Brook Park East, Shirebrook, NG20 8RY, United Kingdom |
| MARCHETTI, Carlo Antonio RESIGNED | Secretary | | 01 Aug 1992 | | | Glenwood Woodland Rise, Sevenoaks, Kent, TN15 0HZ |
| MELLORS, Robert Frank RESIGNED | Secretary | 30 Jun 2004 | 26 Aug 2008 | | | The Warrener, Warren Row, Reading, Berkshire, RG10 8QS |
| MOODIE, Gordon Murray RESIGNED | Secretary | 10 Mar 1996 | 23 Apr 1997 | | | 1 Forest Lodge, Epsom Road, Ashtead, Surrey, KT21 1JX |
| OLSEN, Cameron John RESIGNED | Secretary | 04 Dec 2013 | 01 Jul 2019 | | | Unit A, Brook Park East, Shirebrook, NG20 8RY, United Kingdom |
| RITCHIE, Alistair John, Sol RESIGNED | Secretary | 17 May 1999 | 30 Jun 2004 | | | Waterman's Lodge, 15 Beales Lane, Weybridge, Surrey, KT13 8JS |
| SIMPSON, Brian Charles RESIGNED | Secretary | 23 Apr 1997 | 17 May 1999 | | | 15 Langham Way, Wargrave, Berkshire, RG10 8AX |
| TYLEE-BIRDSALL, Rebecca Louise RESIGNED | Secretary | 26 Aug 2008 | 04 Dec 2013 | | | Unit A, Brook Park East Road, Shirebrook, NG20 8RY, United Kingdom |
| INVENSYS SECRETARIES LIMITED RESIGNED | Secretary | 01 Aug 1992 | 08 Mar 1996 | | | Invensys House, Carlisle Place, London, SW1P 1BX |
| AINSLEY, Stanley RESIGNED | Director | 30 Jul 1999 | 19 Feb 2001 | | October 1956 | Ash Tree Cottage, Maidensgrove, Henley On Thames, Oxfordshire, RG9 6EZ |
| ASHLEY, Michael James Wallace RESIGNED | Director | 31 Dec 2013 | 14 Oct 2016 | England | December 1964 | Unit A, Brook Park East, Shirebrook, NG20 8RY, United Kingdom |
| AUSTEN, Patrick George RESIGNED | Director | 14 Jun 1991 | 22 Jan 1993 | | September 1943 | 14 Chantry View Road, Guildford, Surrey, GU1 3XR |
| BROWN, Robert Casson RESIGNED | Director | 07 Jun 1993 | 08 Mar 1996 | | March 1939 | 38 Newlands Avenue, Melton Park, Newcastle Upon Tyne, NE3 5PX |
| FORSEY, David Michael RESIGNED | Director | 22 Aug 2005 | 14 Oct 2016 | England | June 1966 | Unit A Brook Park East, Shirebrook, NG20 8RY, United Kingdom |
| JACOBS, David Michael RESIGNED | Director | 10 Mar 1996 | 05 Mar 1998 | | March 1944 | Riverside House, Hall Cottages Lodden Drive, Reading, Berkshire, RG10 8ND |
| LOVELL, Alan Charles RESIGNED | Director | 19 Sep 1997 | 30 Sep 2004 | England | November 1953 | The Palace House, Bishops Lane, Bishops Waltham, Hampshire, SO32 1DP |
| MARCHETTI, Carlo Antonio RESIGNED | Director | | 01 Aug 1992 | | April 1951 | Glenwood Woodland Rise, Sevenoaks, Kent, TN15 0HZ |
| MARNOCH, Alasdair, Mr. RESIGNED | Director | 31 Jan 2003 | 02 Aug 2004 | England | March 1963 | Bramble Bottom, Wedmans Lane, Rotherwick, Hampshire, RG27 9BX |
| MATTHEWS, Kenneth Patrick Arthur RESIGNED | Director | | 08 Mar 1996 | | May 1926 | Applegarth Cottage The Hildrens, Westcott, Dorking, Surrey, RH4 3JX |
| MELLORS, Robert Frank RESIGNED | Director | 22 Aug 2005 | 31 Dec 2013 | United Kingdom | May 1950 | Unit A, Brook Park East, Shirebrook, NG20 8RY, United Kingdom |
| MOODIE, Gordon Murray RESIGNED | Director | 10 Mar 1996 | 21 Aug 1997 | | December 1953 | 1 Forest Lodge, Epsom Road, Ashtead, Surrey, KT21 1JX |
| PARNELL, Philip John RESIGNED | Director | 05 Mar 1998 | 17 Aug 2004 | England | May 1952 | The Old Bell House, The Common, Penn, Buckinghamshire, HP10 8LQ |
| PETERS, Andrew Robert Gerald RESIGNED | Director | 10 Mar 1996 | 25 Feb 1999 | | July 1953 | 20 Badingham Drive, Fetcham, Leatherhead, Surrey, KT22 9EU |
| RONNIE, Christopher RESIGNED | Director | 30 Jun 2004 | 01 Nov 2006 | | March 1962 | 18 Macclesfield Road, Wilmslow, Cheshire, SK9 2AA |
| STOCKTON, Rachel Isabel Lilian RESIGNED | Director | 14 Oct 2016 | 14 Mar 2019 | United Kingdom | August 1970 | Unit A, Brook Park East, Shirebrook, NG20 8RY, United Kingdom |
| THOM, James Demmink RESIGNED | Director | 01 Sep 1992 | 08 Mar 1996 | | July 1946 | Tollgate Cottage, Turners Hill Road, Crawley Down, West Sussex, RH10 4HG |
| WATERS, Brian RESIGNED | Director | | 14 Jun 1991 | | May 1931 | 1 Colonels Way, Southborough, Tunbridge Wells, Kent, TN4 0SZ |
| WILLIAMS, Stanley Killa RESIGNED | Director | 01 Sep 1992 | 08 Jun 1993 | England | July 1945 | White Raven, Park Lane, Ashtead, Surrey, KT21 1EU |