| OAKES, Paul Harry ACTIVE | Secretary | 06 Jun 2003 | | | | 1020, Eskdale Road, Winnersh, Wokingham, RG41 5TS |
| COOPER, Stephen Richard ACTIVE | Director | 30 Apr 2014 | | England | December 1966 | 1020, Eskdale Road, Winnersh, Wokingham, RG41 5TS |
| WHISTLER, Christopher Claude Lashmer ACTIVE | Director | 10 Dec 2010 | | England | June 1958 | 1020, Eskdale Road, Winnersh, Wokingham, RG41 5TS |
| DE TURRIS, Atillia Gabriella RESIGNED | Secretary | 29 Mar 1996 | 06 Feb 1998 | | | 8 Vineyard Mews, Preston Place, Richmond Upon Thames, Surrey, TW10 6DD |
| DONALD, Keith Malcolm Hamilton RESIGNED | Secretary | 15 Mar 1995 | 30 Nov 1995 | | | 251 Upper Richmond Road, London, SW15 6SW |
| GOULDING, Graham Thomas RESIGNED | Secretary | 12 Jun 1998 | 25 Apr 2003 | | | 126 Auckland Road, London, SE19 2RP |
| PRICHARD, Teresa Joan RESIGNED | Secretary | 06 Feb 1998 | 12 Jun 1998 | | | 4 Bracken Gardens, Barnes, London, SW13 9HW |
| WALKER, Geoffrey Alan RESIGNED | Secretary | | 15 Mar 1995 | | | 624 Yarm Road, Eaglescliffe, Stockton On Tees, Cleveland, TS16 0DQ |
| BURGESS, David RESIGNED | Director | | 01 Jun 1994 | | April 1945 | The Gatehouse Church Farm, Church Gate Burton Upon Stather, Scunthorpe, South Humberside, DN15 9BS |
| BUTLER, Geoffrey Doy Hopson RESIGNED | Director | 30 Apr 1997 | 31 Dec 2010 | England | October 1946 | Home Green Heath House Road, Worplesdon Hill, Woking, Surrey, GU22 0QU |
| HOAD, Martin Roger Gregory RESIGNED | Director | 10 Dec 2010 | 01 Nov 2011 | United Kingdom | November 1965 | Harsco House, Regent Park, 299 Kingston Road Leatherhead, Surrey, KT22 7SG |
| KIRKWOOD, Clyde RESIGNED | Director | 04 Sep 2009 | 10 Dec 2010 | United Kingdom | September 1964 | High Pines, 14 Douglas Grove, Farnham, Surrey, GU10 3HP |
| LECLERCQ, Herve Michal RESIGNED | Director | 03 Oct 2011 | 30 Apr 2014 | United Kingdom | June 1962 | Harsco House, Regent Park, 299 Kingston Road Leatherhead, Surrey, KT22 7SG |
| LOWERY, Robert Brian RESIGNED | Director | | 31 Jan 1994 | | October 1942 | 61 Earlswood Park, Gateshead, Tyne & Wear, NE9 6AZ |
| MELLODEY, Martin John RESIGNED | Director | 22 Sep 1994 | 11 Apr 1997 | | March 1946 | 2 Home Farm, Aldcliffe, Lancaster, Lancashire, LA1 5AX |
| OAKES, Paul Harry RESIGNED | Director | 03 Oct 2011 | 12 Jun 2014 | United Kingdom | November 1957 | Harsco House, Regent Park, 299 Kingston Road Leatherhead, Surrey, KT22 7SG |
| STUBBS, Graham Martin RESIGNED | Director | 10 Dec 2010 | 12 Jun 2014 | United Kingdom | February 1954 | Harsco House, Regent Park, 299 Kingston Road Leatherhead, Surrey, KT22 7SG |
| UNDERWOOD, Eric RESIGNED | Director | | 24 Aug 2009 | | April 1945 | 11 Beech Avenue, Rotherham, South Yorkshire, S65 3HN |
| WALKER, Geoffrey Alan RESIGNED | Director | | 15 Mar 1995 | England | October 1948 | 624 Yarm Road, Eaglescliffe, Stockton On Tees, Cleveland, TS16 0DQ |