| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | KINGMOOR TECHNICAL HOLDINGS LIMITED | — | Dissolved | 03/06/2026 – present |
| Officer | ALS UK (HOLDINGS) LIMITED | — | Active | 14/05/2026 – 21/06/2017 |
| Officer | LABAP LIMITED | — | Dissolved | 12/06/2026 – present |
| Officer | HYPERGRAPH LABORATORY SUPPLIES LIMITED | — | Dissolved | 13/06/2026 – 20/07/2017 |
| Officer | CBL FINANCE (HOLDINGS) UK LIMITED | — | Dissolved | 21/05/2026 – 21/06/2017 |
| Officer | CBL FINANCE (UK) LIMITED | — | Dissolved | 21/05/2026 – 21/06/2017 |
| Officer | STEWART HOLDINGS MANAGEMENT LIMITED | — | Active | 11/06/2026 – 21/06/2017 |
| Officer | ALS HOLDINGS GROUP LIMITED | — | Active | 11/06/2026 – 21/06/2017 |
| Officer | STEWART ASSAYERS LIMITED | — | Dissolved | 01/06/2026 – present |
| Officer | STEWART GROUP EMPLOYEE SHARE SCHEME LIMITED | — | Dissolved | 06/06/2026 – present |
| Officer | ALS INSPECTION UK LIMITED | 🇬🇧United Kingdom | Active | 09/04/2026 – 17/05/2017 |
| Officer | ALS GROUP ASSAYERS LIMITED | — | Active | 01/06/2026 – 21/06/2017 |
| Officer | ALS TESTING SERVICES (UK) LIMITED | — | Active | 22/05/2026 – 21/06/2017 |
20/07/2017
resigned
21/06/2017
resigned
18/07/2011
appointed