| Company | Timeline | Status | |
Perforation Machinery Limited Director • Company Director | 7 Jul 2009←9 Years→15 Jan 2019 | Dissolved | |
| Tatham Limited Director • Engineer | 21 Jan 2003←22 Years→Current | Active | |
| Rochdale Training Association Limited Director • Director | 12 Jan 2001←1 Year 7 Months→3 Sep 2002 | Active | |
| William Tatham (Cleckheaton) Ltd Director • Engineer | 26 Sep 2000←25 Years→Current | Active | |
Chadwick Machine Company Limited Director • Engineer | 26 Sep 2000←17 Years→11 Sep 2018 | Dissolved | |
| William Tatham Limited Director • Engineer | 18 Apr 2000←2 Years 9 Months→28 Jan 2003 | Liquidation | |
