| Company | Timeline | Status | |
| TD Environmental Ltd Director • Engineer | 18 Nov 2021←3 Years→Current | Active | |
| E2 Technical Limited Director • Hvac Engineer | 30 Jan 2018←7 Years→Current | Active | |
| DT Water Treatment Limited Director • Commissioning Engineer | 7 Apr 2009←9 Years→8 Apr 2018 | Dissolved | |
| DT Technical Services Ltd Director • Commissioning Engineer | 29 Mar 2004←14 Years→18 Sep 2018 | Active | |
