| Company | Timeline | Status | |
| Mark Alderton Holdings Limited Director • Construction Technologist | 31 Dec 1991←34 Years→Current | Active | |
| Mark Alderton Construction Limited Director • Construction Technologist | 31 Dec 1991←32 Years→5 Mar 2024 | Dissolved | |
| Mark Alderton Holdings Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
