| Company | Timeline | Status | |
| SL Environmental Limited Secretary • Insulation Engineer | 10 Jan 2007←11 Years→28 Feb 2018 | Active | |
| SL Environmental Limited Director • Insulation Engineer | 10 Jan 2007←11 Years→28 Feb 2018 | Active | |
SL Contracts UK Limited Director • Insulation Engineer | 21 Oct 2005←13 Years→8 Jan 2019 | Dissolved | |
SL Contracts UK Limited Secretary • Insulation Engineer | 21 Oct 2005←13 Years→8 Jan 2019 | Dissolved | |
| Sparmead Limited Director • Insulation Engineer | 24 Feb 1997←28 Years→Current | Active | |
| Sparmead Limited Secretary • Insulation Engineer | 24 Feb 1997←28 Years→Current | Active | |
| Thermal Insulation Contractors Association Director • Unreported | 16 Sep 1991←14 Years→11 Nov 2005 | Active | |
