| Company | Timeline | Status | |
| Costain Upstream Limited Director • Director | 18 Mar 2022←3 Years→Current | Active | |
| Brunswick Infrastructure Services Limited Director • Director | 18 Mar 2022←3 Years→5 Aug 2025 | Dissolved | |
| Calvert & Russell Ltd Director • Director | 18 Mar 2022←3 Years→Current | Active | |
| Construction Study Centre Limited Director • Director | 18 Mar 2022←3 Years→Current | Active | |
| Kier Professional Services Limited Director • Director | 1 Jul 2018←3 Years→31 Aug 2021 | Active | |
| Kier Minerals Limited Director • Director | 1 Jul 2018←3 Years→31 Aug 2021 | Active | |
| Kier Infrastructure And Overseas Limited Director • Director | 1 Jul 2018←3 Years→31 Aug 2021 | Active | |
