| Company | Timeline | Status | |
| Earth Environmental & Geotechnical (Midlands) Limited Director • Director | 21 Nov 2019←2 Years→14 Dec 2021 | Dissolved | |
| Earth Environmental & Geotechnical (North East) Ltd Director • Director | 17 Apr 2019←5 Years→3 Dec 2024 | Active | |
| Earth Environmental & Geotechnical (Southern) Ltd Director • None | 25 Oct 2016←8 Years→3 Dec 2024 | Active | |
| C.J. Associates Geotechnical Limited Director • Geotechnical Engineer | 13 Jul 2009←7 Years→28 Feb 2017 | Active | |
