| Company | Timeline | Status | |
| South Yorkshire Trades Historical Trust Limited Director • Engineer | 25 Jan 2015←11 Months→1 Jan 2016 | Active | |
| Coalbrook Contracting Limited Director • Engineer | 10 Feb 2011←11 Years→15 Feb 2022 | Dissolved | |
| Edgar Allen Engineering Limited Director • Operations Director | 1 Jul 1997←1 Year 4 Months→20 Nov 1998 | Liquidation | |
