| Company | Timeline | Status | |
| Phase Site Investigations Limited Director • Director | 30 Sep 2024←1 Year→Current | Active | |
| Ad Horner (South West) Limited Director • Director | 30 Jun 2023←1 Year 2 Months→17 Sep 2024 | Dissolved | |
| A.D. Horner Limited Director • Director | 30 Jun 2023←2 Years 3 Months→Current | Active | |
| Sumo Services (South East) Limited Director • Director | 11 Jan 2023←1 Year 4 Months→21 May 2024 | Dissolved | |
| The Gordon Tomalin Partnership Limited Director • Director | 26 Feb 2021←3 Years→21 May 2024 | Dissolved | |
| Aerial-Cam Ltd Director • Director | 12 Dec 2019←4 Years→21 May 2024 | Dissolved | |
| Sumo Holdings Limited Director • Director | 8 Feb 2018←7 Years→Current | Active | |
| Sumo Geophysics Limited Director • Director | 8 Feb 2018←7 Years→Current | Active | |
| Sumo Havant Limited Director • Operations Director | 22 Dec 2011←10 Years→22 Mar 2022 | Dissolved | |
| Sumo Services Limited Director • Operations Director | 22 Dec 2011←13 Years→Current | Active | |
