| Company | Timeline | Status | |
| Blackdyke Engineers Limited Director • Chartered Engineer | 15 Dec 2005←20 Years→Current | Active | |
| Blackdyke Engineers Limited Director • Chartered Engineer | 11 May 2005←2 Months→11 Jul 2005 | Active | |
| Lawson Engineers Limited Director • Chartered Mechanical Engineer | 20 May 2004←21 Years→Current | Active | |
Lawson Design Limited Director • Mech Engineering | 9 Sep 1993←25 Years→25 Sep 2018 | Dissolved | |
