| Company | Timeline | Status | |
| Siddons Steel Castings Limited Director • Director | 28 Nov 2012←4 Years→30 Jul 2017 | Dissolved | |
| Siddons Alloy Castings Ltd Director • Director | 14 Nov 1991←25 Years→30 Jun 2017 | Active | |
| Joseph And Jesse Siddons Limited Director • Director | 14 Nov 1991←25 Years→30 Jun 2017 | Active | |
