| Company | Timeline | Status | |
| British Astronomical Association(The) Director • Retired | 29 Oct 2025←1 Month→Current | Active | |
| British Astronomical Association(The) Director • Retired | 23 Oct 2021←3 Years→30 Oct 2024 | Active | |
| British Astronomical Association(The) Director • Retired | 25 Oct 2017←3 Years→26 Oct 2020 | Active | |
| British Astronomical Association(The) Director • School Teacher | 30 Oct 1991←25 Years→26 Oct 2016 | Active | |
