| Company | Timeline | Status | |
| Birkett Abrasive Machinery Ltd Director • Director | 26 Jun 2025←4 Months→Current | Active | |
| Thorstar Limited Director • Director | 1 Aug 2017←8 Years→Current | Active | |
| Thora Limited Director • Director | 20 Apr 2017←8 Years→Current | Active | |
| RTS (Leeds) Limited Director • Engineer | 10 Apr 2007←18 Years→Current | Active | |
| Ripon Technical Services Limited Director • Engineer | 6 Apr 2000←2 Years 8 Months→31 Dec 2002 | Dissolved | |
