| Company | Timeline | Status | |
| Serif Group Limited Director • Director | 8 Aug 2023←2 Years 4 Months→Current | Active | |
| Serif (Europe) Limited Director • Director | 8 Aug 2023←2 Years 4 Months→Current | Active | |
| Hyfire Wireless Fire Solutions Limited Director • Director | 1 Apr 2022←3 Months→19 Jul 2022 | Active | |
| Ashton Lister Investments Limited Director • Director | 23 Apr 2021←1 Year 2 Months→19 Jul 2022 | Dissolved | |
| Ramtech Overseas Limited Director • Director | 22 Jul 2020←1 Year 12 Months→19 Jul 2022 | Dissolved | |
| Ramtech Electronics Limited Director • Director | 22 Jul 2020←1 Year 12 Months→19 Jul 2022 | Active | |
| Meter Provida Investments Limited Director • Finance Director | 14 Dec 2017←3 Months→19 Mar 2018 | Dissolved | |
| Meter Provida Holdco Limited Director • Finance Director | 14 Dec 2017←3 Months→19 Mar 2018 | Dissolved | |
| Meter Provida Limited Director • Unreported | 14 Dec 2017←3 Months→19 Mar 2018 | Liquidation | |
PJD Power Limited Director • None | 18 May 2016←9 Months→28 Feb 2017 | Dissolved | |
