| Company | Timeline | Status | |
| Sillars (TMWD) Limited Director • Engineer | 27 Oct 2017←5 Years→17 Aug 2023 | Dissolved | |
| Works Infrastructure (Holdings) Limited Director • Engineer | 27 Oct 2017←5 Years→11 Aug 2023 | Dissolved | |
| Works Infrastructure Limited Director • Engineer | 27 Oct 2017←5 Years→11 Aug 2023 | Dissolved | |
| Sillars (B. & C.E.) Limited Director • Engineer | 27 Oct 2017←5 Years→17 Aug 2023 | Dissolved | |
| Sillars Holdings Limited Director • Engineer | 27 Oct 2017←5 Years→17 Aug 2023 | Dissolved | |
| Sillars Road Construction Limited Director • Engineer | 27 Oct 2017←5 Years→17 Aug 2023 | Dissolved | |
