| Company | Timeline | Status | |
| The Society Of Jewellery Historians Director • Consultant | 23 Jun 2020←2 Years 8 Months→28 Feb 2023 | Active | |
| The Gemmological Association Of Great Britain Director • Consultant | 26 Aug 2015←3 Years→4 Dec 2018 | Active | |
| Striptwist Ltd Director • Consultant | 20 Jun 2013←12 Years→Current | Active | |
| The Gemmological Association Of Great Britain Secretary • Chief Executive | 26 Feb 2009←3 Years→17 Sep 2012 | Active | |
| Gemmological Instruments Limited Director • Chief Executive | 1 Jan 2008←5 Years→21 Aug 2013 | Active | |
| Gemmological Instruments Limited Secretary • Chief Executive | 1 Jan 2008←5 Years→21 Aug 2013 | Active | |
