| Company | Timeline | Status | |
| Adam J. Meldan Limited Director • Unreported | 16 Dec 2025←1 Month→Current | Active | |
| HWM Envirosoil Limited Director • Unreported | 31 Jul 2024←1 Year 6 Months→Current | Active | |
| Meldan Properties Limited Director • Unreported | 14 Mar 2018←7 Years→Current | Active | |
HWM Plant LLP Designated LLP Member • Unreported | 22 Jun 2011←9 Years→13 Oct 2020 | Dissolved | |
| HWM Contracting Ltd Director • Unreported | 23 Mar 2010←15 Years→Current | Active | |
| HWM Incorporated Limited Director • Unreported | 22 Mar 2010←15 Years→Current | Active | |
| Hazardous Waste Management Limited Secretary • Unreported | 17 Feb 2009←16 Years→Current | Active | |
Mibi Limited Secretary • Unreported | 1 Sep 2006←13 Years→22 Oct 2019 | Dissolved | |
| Tyrrell Group Limited Director • Unreported | 1 Mar 2002←23 Years→Current | Active | |
| Tyrrell Holdings Limited Director • Company Director | 26 Sep 1991←34 Years→Current | Active | |
