| RICHARDSON, Jonathan Charles ACTIVE | Secretary | 09 Aug 2005 | | | | 8-12, York Gate, London, NW1 4QG, England |
| FISCHER, Andrew Olaf ACTIVE | Director | 05 Dec 1996 | | United Kingdom | August 1964 | 8-12, York Gate, London, NW1 4QG, England |
| FISHER, Ian ACTIVE | Director | 05 Dec 1996 | | United Kingdom | August 1950 | 8-12, York Gate, London, NW1 4QG, England |
| FLETCHER, Alan Thomas ACTIVE | Director | 05 Dec 1996 | | United Kingdom | December 1934 | 8-12, York Gate, London, NW1 4QG, England |
| RICHARDSON, Jonathan Charles ACTIVE | Director | 09 Aug 2005 | | England | November 1960 | 8-12, York Gate, London, NW1 4QG, England |
| BHOWMIK, Chandan Kanti RESIGNED | Secretary | | 06 Dec 1996 | | | 22 Armour Hill, Tilehurst, Reading, Berkshire, RG31 6JP |
| CHISHOLM, Brian Rodney RESIGNED | Secretary | | 28 Feb 1994 | | | Priors Hold, 10 Priory Road, Wantage, Oxfordshire, OX12 9DD |
| SMITH, Stephen Anthony RESIGNED | Secretary | 11 Apr 1997 | 09 Aug 2005 | | | The Tudor House, Week St Mary, Holsworthy, EX22 6UL |
| BLAW DUCTS LIMITED RESIGNED | Secretary | 05 Dec 1996 | 11 Apr 1997 | | | Caradon House 24 Queens Road, Weybridge, Surrey, KT13 9UX |
| BHOWMIK, Chandan Kanti RESIGNED | Director | 07 Sep 1994 | 06 Dec 1996 | | December 1940 | 22 Armour Hill, Tilehurst, Reading, Berkshire, RG31 6JP |
| BOUCHER, Joseph RESIGNED | Director | 22 Dec 2016 | 18 Feb 2020 | United Kingdom | May 1983 | 8-12, York Gate, London, NW1 4QG |
| BROWN, Downie RESIGNED | Director | | 20 Oct 1993 | | June 1943 | Shepherds Close, Byways Gravel Path, Berkhamstead, Hertfordshire, HP4 2PJ |
| BROWN, Philip Crabtree RESIGNED | Director | 01 Apr 1993 | 25 Jan 1994 | | June 1950 | 19 Lakeland Drive, Alwoodley, Leeds, West Yorkshire, LS17 7PJ |
| BURNINGHAM, Derek RESIGNED | Director | 15 Feb 1996 | 06 Dec 1996 | United Kingdom | March 1950 | 58 Brooklands Way, Redhill, Surrey, RH1 2BW |
| CHISHOLM, Brian Rodney RESIGNED | Director | 01 Apr 1993 | 22 Dec 1995 | United Kingdom | September 1945 | Priors Hold, 10 Priory Road, Wantage, Oxfordshire, OX12 9DD |
| HOLLAND, Anthony Edward RESIGNED | Director | 15 Feb 1996 | 06 Dec 1996 | England | November 1950 | 6 Brooklyn Drive, Emmer Green, Reading, Berkshire, RG4 8SS |
| RACE, Eric RESIGNED | Director | 01 Apr 1993 | 20 Oct 1993 | | August 1936 | 18 Stratfield Drive, Broxbourne, Hertfordshire, EN10 7NU |
| RAY, John William RESIGNED | Director | 01 Apr 1993 | 20 Oct 1993 | | August 1933 | Long Lane House, Forest Road, Wokingham, Berkshire, RG40 5SD |
| SAGE, Gordon Holden RESIGNED | Director | | 31 Mar 1993 | | April 1947 | 18 Reynolds Close, London, NW11 7EA |
| SMITH, Stephen Anthony RESIGNED | Director | 11 Apr 1997 | 28 Apr 2006 | United Kingdom | August 1951 | The Tudor House, Week St Mary, Holsworthy, EX22 6UL |
| TURNER, Brian Charles RESIGNED | Director | | 14 Dec 1993 | | June 1939 | Ravensworth, Thirlestaine Road, Cheltenham, Gloucestershire, GL53 7AS |