| Company | Timeline | Status | |
| Leidos Industrial Engineers Limited Director • Director | 18 Sep 2018←10 Months→2 Aug 2019 | Active | |
| Leidos Automation Limited Director • Electrical Engineer | 24 Dec 2008←10 Years→2 Aug 2019 | Liquidation | |
| Mewbourne Properties LLP Designated LLP Member • Unreported | 12 Dec 2008←17 Years→Current | Active | |
Mha-Stopford Limited Director • Electrical Engineer | 15 Oct 2007←10 Years→6 Mar 2018 | Dissolved | |
Macdonald Humfrey (Products) Limited Director • Company Director | 30 Apr 1999←16 Years→18 Jun 2015 | Dissolved | |
| Hylo Automated Parking Limited Director • Electrical Engineer | 28 Jul 1993←11 Months→6 Jul 1994 | Liquidation | |
| Leidos Security & Automation Limited Director • Director | 8 Jun 1991←28 Years→2 Aug 2019 | Liquidation | |
