| WOOD, Adrian John ACTIVE | Director | 08 Apr 2024 | | England | August 1968 | Thermatool House, Crockford Lane, Basingstoke, Hampshire, RG24 8NA |
| BRIGGS, Christopher Charles RESIGNED | Secretary | 23 Dec 2002 | 10 May 2004 | | | 5 Post Cottages, Crawley, Winchester, Hampshire, SO21 2PT |
| BROWNING, Owen Robert RESIGNED | Secretary | | 02 Jul 1991 | | | Yellowstones Rise Road, Sunningdale, Ascot, Berkshire, SL5 0AT |
| HITCHINER, Christopher David RESIGNED | Secretary | 28 Jan 2010 | 15 Sep 2017 | | | Dunan House, Clehonger, Hereford, Herefordshire, HR2 9SF |
| LOFTUS, Desmond Martin Peter RESIGNED | Secretary | 10 May 2004 | 28 Jan 2010 | | | Rectory House, Tew Lane Wootton, Woodstock, Oxon, OX20 1HA |
| ROBINSON, Philip Egerton RESIGNED | Secretary | 02 Jul 1991 | 23 Dec 2002 | | | Egerton House, 21 Murdoch Road, Wokingham, Berkshire, RG40 2DQ |
| BASKERVILLE, Stephen William RESIGNED | Director | 14 Mar 2006 | 13 Nov 2008 | England | October 1966 | 15, Catcliffe Way, Lower Earley, Reading, Berkshire, RG6 4HX |
| DOYON, Gary Anthony RESIGNED | Director | 16 Dec 2002 | 22 Sep 2008 | United States | January 1959 | 31 Kirby Court, Grosse Point Farms, Michigan, 48236, Usa |
| FEIL, Steven Craig RESIGNED | Director | 13 Oct 2015 | 08 Apr 2024 | United States | July 1961 | Thermatool House, Crockford Lane, Basingstoke, Hampshire, RG24 8NA |
| GARAWAY, Michael RESIGNED | Director | | 14 Jun 2002 | | June 1939 | Fleet Copse Fleet Hill, Finchampstead, Wokingham, Berkshire, RG40 4LA |
| HAWKINS, Graham Edmund RESIGNED | Director | 19 Nov 2003 | 20 Nov 2008 | United Kingdom | August 1945 | 74 Ravenhurst Road, Harborne, Birmingham, West Midlands, B17 9SP |
| HINE, Wayne RESIGNED | Director | 31 Jul 2021 | 08 Apr 2024 | England | March 1963 | Thermatool House, Crockford Lane, Basingstoke, Hampshire, RG24 8NA |
| HITCHINER, Christopher David RESIGNED | Director | 29 Oct 2009 | 15 Sep 2017 | United Kingdom | February 1954 | Thermatool House, Crockford Lane, Basingstoke, Hampshire, RG24 8NA |
| HOOPER, John Henry RESIGNED | Director | 04 Jan 2002 | 25 Mar 2004 | | October 1941 | 349 Spinmaker Drive, Pewt Water, Michigan, 49449 0925, Usa |
| JACOB, Sebastien RESIGNED | Director | 15 Sep 2017 | 31 Jul 2021 | Belgium | April 1978 | Thermatool House, Crockford Lane, Basingstoke, Hampshire, RG24 8NA |
| JOYCE, Colin William RESIGNED | Director | | 02 Jul 1991 | | February 1933 | Cromwell House, West Deeping, Peterborough, Cambs, PE6 9HS |
| MANLEY, Frank RESIGNED | Director | 29 Oct 2009 | 30 Jun 2014 | United States | October 1946 | Thermatool House, Crockford Lane, Basingstoke, Hampshire, RG24 8NA |
| MASTERS, Alexander Frank RESIGNED | Director | | 02 Jul 1991 | | October 1925 | Grove Spring Nightingales Lane, Chalfont St Giles, Buckinghamshire, HP8 4SG |
| MORTIMER, John Herbert RESIGNED | Director | 04 Jan 2002 | 22 Sep 2008 | | May 1944 | 19 Littlejohn, Medford, New Jersey, Usa |
| ROBINSON, Philip Egerton RESIGNED | Director | | 16 Dec 2002 | England | September 1941 | Egerton House, 21 Murdoch Road, Wokingham, Berkshire, RG40 2DQ |
| ROWAN, Henry Madison RESIGNED | Director | 02 Jul 1991 | 22 Sep 2008 | | December 1923 | Centreton Road, Rancocas, New Jersey, Usa |
| SMITH, Manning James RESIGNED | Director | 02 Jul 1991 | 16 Dec 2002 | | August 1940 | 341 Park Drive, Moorestown, New Jersey 08057, FOREIGN, Usa |
| SPASH, David Isaac RESIGNED | Director | | 20 Sep 1991 | | November 1927 | Arrochar, High Meadow Upper Warren Avenue Caversham, Reading, Berkshire, RG4 7EL |
| TAYLOR, Byron Lynn RESIGNED | Director | 02 Jul 1991 | 16 Dec 2002 | | May 1930 | 8917 Edgewood Park, Union Lake, Michigan, 48387, Usa |
| WALLACE, Paul RESIGNED | Director | 19 Nov 2003 | 23 Oct 2009 | United Kingdom | August 1948 | 26 Heron Way, Basingstoke, Hampshire, RG22 5QT |
| WHISKEN, Michael RESIGNED | Director | 14 Mar 2006 | 29 Oct 2009 | England | April 1964 | 3, Franklin Road, Moordown, Bournemouth, Dorset, BH9 3AY |