| Company | Timeline | Status | |
| Roston Castings Limited Director • Purchasing Director | 6 Jan 1999←26 Years→Current | Active | |
| Roston Castings Limited Director • Purchasing Director | 6 Jan 1999←25 Years→19 Jun 2024 | Active | |
| The Roston Iron Foundry Limited Director • Buyer | 15 Jan 1996←28 Years→30 Apr 2024 | Dissolved | |
