| JEPSON, Stuart ACTIVE | Secretary | 31 Jul 2009 | | | | Bowfell, Lordswell Lane, Crowborough, East Sussex, TN6 1HX |
| CHRISTENSEN, Thomas Scharling ACTIVE | Director | 13 Nov 2014 | | England | September 1963 | Koppers Performance Chemicals, Thames Industrial Estate, Fieldhouse Lane, Marlow, Buckinghamshire, SL7 1LS, England |
| JEPSON, Stuart ACTIVE | Director | 31 Jul 2009 | | United Kingdom | February 1955 | Bowfell, Lordswell Lane, Crowborough, East Sussex, TN6 1HX |
| LACY, Steven Robert ACTIVE | Director | 13 Nov 2014 | | United States | January 1956 | 436, Seventh Avenue, Pittsburgh, Pennsylvania 15219, United States |
| REEDER, Stephen Clifford ACTIVE | Director | 13 Nov 2014 | | United States | December 1952 | 436, Seventh Avenue, Pittsburgh, Pennsylvania 15219, United States |
| ZUGAY, Michael J ACTIVE | Director | 13 Nov 2014 | | United States | January 1952 | 436, Seventh Avenue, Pittsburgh, Pennsylvania 15219, United States |
| BOYLIN, Terry Leslie RESIGNED | Secretary | 30 Jun 1999 | 31 Jul 2009 | | | Port Lion, Horsley Green, High Wycombe, Buckinghamshire, HP14 3UX |
| BUSSON, Alan Paul RESIGNED | Secretary | | 30 Jun 1999 | | | 41 Home Close, Chiseldon, Swindon, Wiltshire, SN4 0ND |
| BALL JR, Leroy Magnus RESIGNED | Director | 13 Nov 2014 | 13 Nov 2014 | Usa | May 1968 | 436, Seventh Avenue, Pittsburgh, Pa 15219, United States |
| BOYLIN, Terry Leslie RESIGNED | Director | | 31 Jul 2009 | | March 1937 | Port Lion, Horsley Green, High Wycombe, Buckinghamshire, HP14 3UX |
| BROOKS, Frank, Doctor RESIGNED | Director | | 01 Jul 1999 | | August 1941 | Ivy Lodge, Cricket Ground, Stokenchurch, Buckinghamshire, HP14 3TY |
| CHALMERS, Charles Edward RESIGNED | Director | | 31 Dec 1992 | | January 1952 | Glenhill, Lound Road Toft, Bourne, Lincolnshire, PE10 0JU |
| CHIDDLE, Terrence Charles RESIGNED | Director | | 31 Jan 1999 | | June 1941 | 63 Buchanan Road, Upper Arncott, Bicester, Oxfordshire, OX6 0PE |
| GOYDAN, Paul Alexander RESIGNED | Director | 01 Jul 1999 | 05 Mar 2002 | | February 1947 | 430 Birkdale Drive, Fayetteville, Georgia 30215, America |
| HARRIS, Neil RESIGNED | Director | 01 Jul 1999 | 05 Mar 2002 | | February 1949 | 305 Brechin Drive, Senoia, Ga 30276, Usa |
| JONES, Anthony David Ernest RESIGNED | Director | 16 Jun 1993 | 01 Apr 1999 | | May 1939 | Woldstone 21 The Street, Marston Meysey, Cricklade, Wiltshire, SN6 6LQ |
| KENYON, Alan RESIGNED | Director | | 31 Aug 1995 | England | August 1941 | 28 Hayfield Drive, Hazlemere, High Wycombe, Bucks, HP15 7TB |
| KISIEL, Roman Tadeusz RESIGNED | Director | | 01 Jul 1999 | | September 1947 | 6 Cliveden Road, Wimbledon, London, SW19 3RB |
| LACY, Steven Robert RESIGNED | Director | 13 Nov 2014 | 13 Nov 2014 | United States Of America | January 1956 | 436, Seventh Avenue, Pitsburgh, Pa 15219, United States |
| MCCONNELL, Ian RESIGNED | Director | 09 Oct 1992 | 31 Dec 2014 | England | August 1950 | Maxwood, New Road Shiplake, Henley-On-Thames, Oxfordshire, RG9 3LG |
| SAUNDERS, Laurence David Andrew, Dr RESIGNED | Director | | 01 Jul 1999 | England | October 1951 | 31 New Drive, High Wycombe, Buckinghamshire, HP13 6JS |
| SPENGLER JR, James Roger RESIGNED | Director | 01 Jul 1999 | 05 Mar 2002 | Usa | October 1951 | 9 Woodcrest Drive Orchard Park, Erie New York 14127, Usa |
| USMAN, Mahmood RESIGNED | Director | | 31 Dec 1996 | | April 1939 | Laragh Thong Lane, Shorne, Gravesend, Kent, DA12 4AD |
| WOTTON, Robert Nicholas RESIGNED | Director | | 31 Dec 1992 | | August 1943 | 26 St Albans Road, Reigate, Surrey, RH2 9LN |
| YOUNG, Roger Neville RESIGNED | Director | | 14 Jul 1993 | | September 1938 | Chalcroft Cliff Way, Compton Down, Winchester, Hampshire, SO21 2AP |
| YOUNG, Timothy James RESIGNED | Director | 16 Jun 1993 | 30 Sep 1997 | | May 1958 | 19 Whitacre Road, Knowle, Solihull, West Midlands, B93 9HW |