| Company | Timeline | Status | |
| Protostar Holdings Limited Director • Director | 7 Jul 2023←2 Years 5 Months→Current | Active | |
| Protostar Friary Limited Director • Director | 7 Jul 2023←2 Years 5 Months→Current | Active | |
| Protostar Homes Limited Director • Developer | 24 Feb 2020←5 Years→Current | Active | |
| Protostar Construction Limited Director • Unreported | 1 Dec 2017←8 Years→Current | Active | |
| Protostar Limited Director • Director | 15 Jun 2005←20 Years→11 Nov 2025 | Dissolved | |
