| DAVIDSON-SHRINE, Gregory ACTIVE | Secretary | 04 Dec 2019 | | | | 2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, GU2 7AH, England |
| GIBBINS, Simon Mark ACTIVE | Director | 04 Nov 2019 | | United Kingdom | July 1966 | 2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, GU2 7AH, England |
| HILL, Paul Stuart ACTIVE | Director | 20 Jul 2022 | | England | August 1962 | 2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, GU2 7AH, England |
| FREDERIKSEN, Jan RESIGNED | Secretary | 28 Sep 2007 | 21 Feb 2008 | | | Beech House, 16 Hacketts Lane Pyrford, Woking, Surrey, GU22 8PP |
| HAMMOND, Ian Thomas RESIGNED | Secretary | 21 Feb 2008 | 31 Dec 2009 | | | 105, Primrose Hill, Widmer End, Bucks, HP15 6NT |
| JACKSON, David Sydney RESIGNED | Secretary | | 31 Dec 1991 | | | 6 Westmorland Drive, Camberley, Surrey, GU15 1EW |
| JAYE, Stephen Christopher RESIGNED | Secretary | 19 Jan 2010 | 16 Mar 2016 | | | Unit 6a, Langley Business Centre, Station Road, Langley, Slough, SL3 8DS, United Kingdom |
| PICKERING, Derek Gregory RESIGNED | Secretary | 15 Oct 1993 | 28 Sep 2007 | | | Grasmere Woodlands Road East, Virginia Water, Surrey, GU25 4PH |
| ROWE, Nicholas RESIGNED | Secretary | 05 Nov 2019 | 04 Dec 2019 | | | 2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, GU2 7AH, England |
| RYAN, Anne Margaret RESIGNED | Secretary | 31 Dec 1991 | 15 Oct 1993 | | | 30a Cumberland Road, Richmond, Surrey, TW9 3HQ |
| FREDERIKSEN, Jan RESIGNED | Director | 01 Oct 1991 | 18 Jan 2010 | United Kingdom | May 1948 | Beech House, 16 Hacketts Lane Pyrford, Woking, Surrey, GU22 8PP |
| GRIFFITHS, John Hugh RESIGNED | Director | | 30 Sep 1991 | United Kingdom | February 1932 | 32 The Chantry, Hillingdon, Uxbridge, Middlesex, UB8 3RA |
| HAMMOND, Ian Thomas RESIGNED | Director | 21 Feb 2008 | 31 Dec 2009 | United Kingdom | August 1954 | 105, Primrose Hill, Widmer End, Bucks, HP15 6NT |
| JAYE, Stephen Christopher RESIGNED | Director | 28 Sep 2007 | 13 Apr 2022 | United Kingdom | August 1962 | 2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, GU2 7AH, England |
| MCALPINE, Ronald Marshall RESIGNED | Director | | 18 May 2007 | England | April 1953 | 14 St George Drive, Uxbridge, Middlesex, UB10 8HW |
| NEVILLE, Paul Howard RESIGNED | Director | 04 Nov 2019 | 03 Mar 2022 | England | April 1967 | 2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, GU2 7AH, England |
| PICKERING, Derek Gregory RESIGNED | Director | 03 Dec 1993 | 28 Sep 2007 | | September 1953 | Grasmere Woodlands Road East, Virginia Water, Surrey, GU25 4PH |
| SLOAN, Andrew Michael RESIGNED | Director | 13 Apr 2022 | 31 Jul 2026 | United Kingdom | March 1964 | 2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, GU2 7AH, England |
| WADE, Clifford RESIGNED | Director | 07 Jan 1994 | 31 Mar 2005 | | September 1939 | 45 Straight Bit, Flackwell Heath, High Wycombe, Buckinghamshire, HP10 9NE |
| WRIGHT, Anthony George RESIGNED | Director | | 18 May 2007 | | November 1943 | Brantham Quill Hall Lane, Amersham, Buckinghamshire, HP6 6LU |