| Company | Timeline | Status | |
| Alexander Sinclair Limited Director • Roof Tile Manufacturer | 3 Apr 1992←33 Years→Current | Active | |
Sandtoft Trading Limited Director • Roof Tile Manufacturer | 3 Apr 1992←11 Years→12 May 2003 | Dissolved | |
| Sandtoft Roof Tiles Limited Director • Roof Tile Manufacturer | 31 Mar 1992←11 Years→12 May 2003 | Active | |
