| Company | Timeline | Status | |
| Gemmological Instruments Limited Director • Scientist | 24 Apr 2017←8 Years→Current | Active | |
| Gemmological Instruments Limited Director • Scientist | 24 Apr 2017←7 Years→26 Jul 2024 | Active | |
| The Gemmological Association Of Great Britain Director • Scientist | 19 Jan 2015←1 Year→17 Feb 2016 | Active | |
