| Company | Timeline | Status | |
| LK Energy Solutions Limited Director • None | 30 Sep 2011←7 Years→31 Aug 2019 | Active | |
| LK Consult Limited Director • None | 30 Sep 2011←8 Years→18 Oct 2019 | Active | |
| LK Management Limited Director • None | 30 Sep 2011←8 Years→18 Oct 2019 | Active | |
| LK Remediate Limited Director • None | 30 Sep 2011←8 Years→18 Oct 2019 | Active | |
| LK Pollution Response Limited Director • None | 30 Sep 2011←8 Years→18 Oct 2019 | Active | |
| LK Assure Limited Director • Director | 8 Dec 2008←10 Years→18 Oct 2019 | Active | |
| Leyden Kirby Associates Limited Director • Director | 2 Jan 2007←12 Years→18 Oct 2019 | Active | |
