| Company | Timeline | Status | |
| Youngs Electrical Systems Limited Director • Electrical Systems Engineer | 23 Jan 1998←25 Years→2 May 2023 | Dissolved | |
| Protec Automation Ltd Director • Electrical Systems Engineer | 19 Jan 1994←4 Years→31 Dec 1998 | Active | |
| Electrical & Mechanical Controls Limited Director • Project Engineer | 8 Oct 1991←2 Years 3 Months→14 Jan 1994 | Active | |
