| Company | Timeline | Status | |
Micro-Photonics Ltd Secretary • Unreported | 4 Apr 2009←2 Months→10 Jun 2009 | Dissolved | |
| Oldfield Light & Sound Limited Secretary • Unreported | 5 Dec 2008←13 Years→16 Aug 2022 | Dissolved | |
| Oldfield Light & Sound Limited Director • Director | 5 Dec 2008←13 Years→16 Aug 2022 | Dissolved | |
| Oldfield Systems Limited Director • Unreported | 29 Jan 2007←18 Years→Current | Active | |
| Oldfield Sciences Limited Secretary • Unreported | 19 May 2005←11 Years→18 Apr 2017 | Dissolved | |
