| Company | Timeline | Status | |
| Exergy3 Limited Director • Chairman | 31 Aug 2023←2 Years 3 Months→Current | Active | |
| The Sigma Foundation Director • Director | 23 Apr 2018←3 Years→31 Aug 2021 | Dissolved | |
| Central Market Agency Limited Director • Director | 1 Aug 2017←7 Years→31 Mar 2025 | Active | |
| Turnbull & Scott (Engineers) Limited Director • Company Director | 18 Jan 2017←2 Years 1 Month→20 Feb 2019 | Active | |
| Bellrock Technology Limited Director • Director | 20 Nov 2015←4 Years→29 Feb 2020 | Active | |
| Heat Customer Protection Ltd Director • Non-executive Director | 1 Oct 2015←10 Years→Current | Active | |
| Hai Clean Limited Director • Consultant | 19 Jan 2012←2 Years 2 Months→25 Mar 2014 | Active | |
| Seaenergy Plc Director • Consultant | 24 Sep 2009←12 Years→21 Sep 2021 | Dissolved | |
| Red Rock Renewables Limited Director • Director | 1 Oct 2008←2 Years 9 Months→28 Jun 2011 | Active | |
| Sigma Capital Group Limited Director • Senior Independent Non-executive Directo | 19 Jun 2007←14 Years→31 Aug 2021 | Active | |
