| FOWLER, John Kenneth ACTIVE | Secretary | 12 Apr 2017 | | | | 5, Manchester Square, London, W1U 3PD |
| CRAVEN, Nicholas Charles ACTIVE | Director | 23 Aug 2023 | | England | April 1986 | 5, Manchester Square, London, W1U 3PD |
| FRISCHMANN, Richard Sandor ACTIVE | Director | 02 Mar 2026 | | England | August 1960 | 5, Manchester Square, London, W1U 3PD |
| CARMICHAEL, Norman William RESIGNED | Secretary | 12 Jun 1996 | 29 Aug 2003 | | | 35 Bristow Road, Croydon, Surrey, CR0 4QQ |
| MILLIGAN, Robert Colin RESIGNED | Secretary | | 12 Jun 1996 | | | 3 The Orchard, Sandy Lane Brampford Speke, Exeter, Devon, EX5 5HW |
| ROBERTS, Linda Susan RESIGNED | Secretary | 29 Aug 2003 | 01 Oct 2015 | | | 3 Gatesbury Way, Puckeridge, Hertfordshire, SG11 1TQ |
| BATY, Robert John RESIGNED | Director | | 29 Feb 1996 | United Kingdom | June 1944 | Nanparah Lodge, Higher Broadoak Road, West Hill, Ottery St Mary, Devon, EX11 1XJ |
| CARMICHAEL, Norman William RESIGNED | Director | 12 Jun 1996 | 29 Aug 2003 | | July 1943 | 35 Bristow Road, Croydon, Surrey, CR0 4QQ |
| DORR, Alois RESIGNED | Director | | 21 Jul 1998 | | May 1943 | The Mill, Drakes Farm Ide, Exeter, Devon, EX2 9RL |
| FRASER, William Hamilton RESIGNED | Director | | 29 Feb 1996 | | February 1938 | 4 Rivermount, Lower Hampton Road, Sunbury On Thames, Middlesex, TW16 5PH |
| FRISCHMANN, Wilem William, Dr RESIGNED | Director | | 02 Mar 2026 | United Kingdom | January 1931 | 4, Manchester Square, London, W1U 3PD |
| HILL, Kenneth Leslie RESIGNED | Director | | 12 Jun 1996 | | May 1941 | Buckfield Bonds Lane, Woodbury Salterton, Devon, EX5 1QF |
| JOHNSON, Peter Allan RESIGNED | Director | 13 Jun 1996 | 22 May 1997 | | September 1948 | Springfields Rackenford Road, Tiverton, Devon, EX16 5AG |
| LENSSEN, Sydney RESIGNED | Director | | 30 Jan 1998 | | January 1938 | Five Farthings 2 Burnett Park, Harlow, Essex, CM19 4SD |
| MUNRO, Crawford Taylor RESIGNED | Director | 27 Jul 1998 | 23 Mar 2012 | England | May 1952 | 33, Couper Meadows, Clyst Heath, Exeter, Devon, EX2 7TF, Uk |
| PRABHU, Sudhakar Shrirang RESIGNED | Director | 13 Jun 1996 | 31 Mar 2013 | England | February 1936 | 5, Manchester Square, London, W1U 3PD, United Kingdom |
| SWEENEY, Christopher, Dr RESIGNED | Director | 26 Mar 2012 | 27 Nov 2023 | United Kingdom | August 1956 | 5, Manchester Square, London, W1U 3PD, United Kingdom |