| Company | Timeline | Status | |
| Stratum Reservoir Petrophysics (UK), Ltd Director • Unreported | 26 May 2023←2 Months→18 Aug 2023 | Dissolved | |
| ALS UK (Holdings) Limited Director • Unreported | 1 Apr 2023←2 Years 7 Months→Current | Active | |
| ALS Testing Services (UK) Limited Director • Unreported | 1 Apr 2023←2 Years 7 Months→Current | Active | |
| ALS Group Assayers Limited Director • Unreported | 1 Apr 2023←2 Years 7 Months→Current | Active | |
| Stewart Holdings Management Limited Director • Unreported | 1 Apr 2023←2 Years 7 Months→Current | Active | |
| ALS Holdings Group Limited Director • Unreported | 1 Apr 2023←2 Years 7 Months→Current | Active | |
| ALS Life Sciences Limited Director • Unreported | 1 Apr 2023←2 Years 7 Months→Current | Active | |
| ALS Laboratories (UK) Limited Director • Unreported | 1 Apr 2023←2 Years 7 Months→Current | Active | |
| ALS Environmental Limited Director • Group Finance Director | 1 Apr 2023←1 Year 3 Months→16 Jul 2024 | Dissolved | |
| ALS Inspection UK Limited Director • Unreported | 1 Apr 2023←2 Years 7 Months→Current | Active | |
