| Adrian Roobottom | Director | 1 Jan 2008 | 25 Oct 2013 | British | 61 years |
| Alfred Dennis Matthews | Director | 15 Jan 1996 | 22 Aug 1996 | British | 98 years |
| Christopher Alan Butterfield | Director | 22 Aug 1996 | 29 Aug 2025 | British | 75 years |
| Christopher Alan Butterfield | Secretary | 22 Aug 1996 | 31 Jul 2006 | British | - |
| Christopher Gordon Greatbatch | Director | 15 Jan 1996 | 22 Aug 1996 | British | 81 years |
| Conway Gilbert Hall | Director | 15 Jan 1996 | 22 Aug 1996 | British | 82 years |
| Derek Benjamin Woolgar | Director | 11 Jul 1996 | 22 Aug 1996 | British | 98 years |
| Donald John Balmer | Director | 15 Jan 1996 | 22 Aug 1996 | British | 98 years |
| Ian Michael Jones | Director | 15 Jan 1996 | 22 Aug 1996 | British | 86 years |
| James Stephen Butterfield | Director | 8 Oct 2019 | 29 Aug 2025 | British | 44 years |
| John Robert Coles | Director | 22 Aug 1996 | 27 Feb 2021 | British | 80 years |
| Julia Elizabeth Mary Gulliford | Director | 1 Apr 2021 | 29 Aug 2025 | British | 44 years |
| Michael Andrew Poole | Director | 3 Aug 2006 | 29 Aug 2025 | British | 62 years |
| Michael Andrew Poole | Secretary | 1 Aug 2006 | 13 Jan 2009 | British | - |
| Nigel David Keen | Director | 15 Jan 1996 | 22 Aug 1996 | British | 94 years |
| Nigel David Keen | Secretary | 15 Jan 1996 | 22 Aug 1996 | British | - |
| Robin John Balmain | Director | 15 Jan 1996 | 22 Aug 1996 | British | 81 years |
| Roy Benton | Director | 15 Jan 1996 | 22 Aug 1996 | British | 93 years |
