| Company | Timeline | Status | |
| Sentri Ltd Director • Unreported  | 26 Oct 2025←9 Days→Current  | Active  | |
Rossington Eco Energy Ltd Director • Unreported  | 13 Dec 2017←2 Years 3 Months→7 Apr 2020  | Dissolved  | |
| Tees Eco Energy Ltd Director • Unreported  | 19 May 2016←2 Years 1 Month→5 Jul 2018  | Active  | |
| Pebben Ltd Director • Unreported  | 24 Jul 2015←10 Years→Current  | Active  | |
Etef Teesside Ltd Director • Unreported  | 6 Oct 2014←1 Year 3 Months→2 Feb 2016  | Dissolved  | |
Etef (UK) Ltd Director • Unreported  | 12 Nov 2013←2 Years 2 Months→2 Feb 2016  | Dissolved  | |
| Gaia Heat Biomass Limited Director • Unreported  | 21 Jun 2013←3 Years→5 Aug 2016  | Dissolved  | |
| Gaia Heat (Coeus) Limited Director • Unreported  | 21 Jun 2013←3 Years→5 Aug 2016  | Active  | |
| Gaia Heat Projects Limited Director • Unreported  | 14 Aug 2012←3 Years→5 Aug 2016  | Dissolved  | |
| Gaia Heat Limited Director • Unreported  | 2 Apr 2012←4 Years→5 Aug 2016  | Active  | |
