| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Person with significant control | PEASE HOUSE LTD | 🇬🇧United Kingdom | Active | 24/06/2024 – 30/09/2017 |
| Person with significant control | SIMPSON ENGINEERING CONSULTANCY LTD | 🇬🇧United Kingdom | Active | 30/01/2024 – present |
| Person with significant control | SIMPSON DESIGN CONSULTANCY LTD | 🇬🇧United Kingdom | Active | 08/02/2024 – present |
30/09/2017
resigned
31/05/2017
appointed
13/02/2017
appointed