| Company | Timeline | Status | |
| Richmond Grange Freshwater Management Company Limited Director • Engineer | 10 Feb 2020←2 Years 9 Months→15 Nov 2022 | Active | |
| Richmond Grange Freshwater Management Company Limited Director • Engineer | 28 Mar 2015←2 Years→27 Mar 2017 | Active | |
| Freshwater Instrument Control And Automation Limited Director • Unreported | 3 Aug 2012←13 Years→Current | Active | |
