| Company | Timeline | Status | |
| MNRC Structures Limited Director • Director | 3 Oct 2017←8 Years→Current | Active | |
| Napier Structures Limited Director • Director | 8 Sep 2016←4 Years→5 Jun 2021 | Dissolved | |
| Napier Construction Services Limited Director • Director | 12 May 2016←5 Years→12 Oct 2021 | Dissolved | |
| Mark Napier Reinforcements Limited Director • Administrator | 1 Dec 2014←2 Years 4 Months→25 Apr 2017 | Active | |
| Napier Industrial Flooring Limited Director • Director | 1 Sep 2014←7 Years→15 Feb 2022 | Dissolved | |
| Napier Structures Limited Director • Director | 1 Sep 2014←2 Years→8 Sep 2016 | Dissolved | |
