| Company | Timeline | Status | |
| OLD Hall 2022 Limited Director • Engineer | 9 May 2014←11 Years→Current | Liquidation | |
| Rotamic Systems Limited Director • Engineer | 30 Mar 2004←18 Years→22 Jul 2022 | Active | |
| Rotamic Engineering Limited Director • Engineer | 1 Mar 2004←18 Years→22 Jul 2022 | Active | |
Eden Engineering Limited Director • Engineer | 12 Nov 2001←3 Months→28 Feb 2002 | Dissolved | |
