| BROWN, Wayne ACTIVE | Secretary | 01 Oct 2015 | | | | Napier House, Auckland Park, Bletchley, Milton Keynes, MK1 1BU, England |
| BROWN, Wayne Mitchell ACTIVE | Director | 01 Oct 2015 | | England | November 1964 | Napier House, Auckland Park, Bletchley, Milton Keynes, MK1 1BU, England |
| LOEFFELHOLZ, Karl-Heinz ACTIVE | Director | 23 Jun 2026 | | Germany | December 1968 | Napier House, Auckland Park, Bletchley, Milton Keynes, MK1 1BU, England |
| LAURENCE, John Graham RESIGNED | Secretary | | 30 Jun 1999 | | | Spindlewood Cottage, 25 Hill Farm Road, Marlow Bottom, Buckinghamshire, SL7 3LX |
| RYDINGS, Robert Slater RESIGNED | Secretary | 07 Dec 1999 | 30 Sep 2015 | | | 7 Popes Acre, Haddenham, Aylesbury, Buckinghamshire, HP17 8AQ |
| TRUEMAN, Anthony John RESIGNED | Secretary | 30 Jun 1999 | 07 Dec 1999 | | | 79 The Rydings, Langho, Blackburn, Lancashire, BB6 8BQ |
| BOEGNER, Wolfram Alfred Antonius RESIGNED | Director | 30 Jun 2010 | 01 Jun 2017 | Germany | November 1965 | 65 Denbigh Road, Bletchley, Milton Keynes, Buckinghamshire, MK1 1PB |
| CAMPBELL, Helen Victoria RESIGNED | Director | 01 Jun 2017 | 23 Jun 2026 | England | December 1974 | Napier House, Auckland Park, Bletchley, Milton Keynes, MK1 1BU, England |
| JESSUP, William RESIGNED | Director | 04 Jul 1995 | 19 Apr 2005 | England | November 1951 | Slade House, Hinwick, Wellingborough, Northamptonshire, NN29 7JB |
| KNIGHT, Marguerite Patricia RESIGNED | Director | 28 Feb 1994 | 04 Jul 1995 | | November 1964 | 42 Roxborough Road, Harrow, Middlesex, HA1 1PA |
| LAURENCE, John Graham RESIGNED | Director | | 30 Jun 1999 | | March 1938 | Spindlewood Cottage, 25 Hill Farm Road, Marlow Bottom, Buckinghamshire, SL7 3LX |
| MORGAN, Guy Kenneth RESIGNED | Director | | 28 Feb 1994 | | May 1964 | 9a Woodland Avenue, Windsor, Berkshire, SL4 4AG |
| RYDINGS, Robert Slater RESIGNED | Director | 30 Jun 2010 | 30 Sep 2015 | England | September 1953 | 65 Denbigh Road, Bletchley, Milton Keynes, Buckinghamshire, MK1 1PB |
| TRUEMAN, Anthony John RESIGNED | Director | 30 Jun 1999 | 07 Dec 1999 | | May 1961 | 79 The Rydings, Langho, Blackburn, Lancashire, BB6 8BQ |
| VANNERBERG, Per Gosta Markus RESIGNED | Director | 02 Jan 2006 | 30 Jun 2010 | Sweden | April 1961 | Blaarvsgrand 82, Vallingby, 162 45, Sweden |
| WATSON, Michael John RESIGNED | Director | 19 Apr 2005 | 30 Jun 2010 | Hong Kong | January 1954 | Grafton House, Stable Close, Finmere, Buckinghamshire, MK18 4AD |