| Company | Timeline | Status | |
| GHJ Biogas Poland Ltd Director • Director | 17 Mar 2024←1 Year 7 Months→Current | Active | |
| Hallwick Biomethane Investments Limited Director • Director | 11 Feb 2024←1 Year 8 Months→Current | Active | |
| Rika Biogas Technologies Ltd Director • Director | 19 Oct 2015←10 Years→Current | Active | |
| Rika Biofuel Developments Ltd Director • Director | 10 Apr 2014←11 Years→Current | Active | |
