| Company | Timeline | Status | |
| Roberts Limbrick Limited Director • Architect | 1 Sep 2025←3 Months→Current | Active | |
| Roberts Limbrick Holdings Limited Director • Architect | 1 Sep 2025←3 Months→Current | Active | |
| Design-Cubed Limited Director • Director | 1 May 2019←3 Years→21 Jul 2022 | Active | |
| Robert Starnes Architects Ltd Director • Unreported | 17 Aug 2017←8 Years→Current | Active | |
