| Company | Timeline | Status | |
| Selkirk Hill Investments Limited Director • Unreported | 1 Sep 2020←5 Years→Current | Active | |
| Briggs Commercial Limited Director • Unreported | 20 Sep 2019←6 Years→Current | Active | |
| Briggs Marine Contractors Limited Director • Unreported | 15 Aug 2011←14 Years→Current | Active | |
| Briggs Environmental Services Limited Director • Unreported | 15 Aug 2011←14 Years→Current | Active | |
