| Company | Timeline | Status | |
| Spectral Measurement Limited Director • Unreported | 7 May 2019←6 Years→Current | Active | |
| Prism Media Technology Ltd Director • Company Director | 21 May 2012←12 Years→29 Oct 2024 | Dissolved | |
Prism Imerge Limited Director • Company Director | 4 Jan 2011←4 Years→14 Apr 2015 | Dissolved | |
| Prism Media Products Limited Director • Computer Consultant | 2 Jun 1992←33 Years→Current | Active | |
| Prism Media Products Limited Secretary • Computer Consultant | 2 Jun 1992←33 Years→Current | Active | |
Wirralview Limited Director • Computer Programmer | 4 Sep 1991←26 Years→21 Aug 2018 | Dissolved | |
| Prism Sound Limited Secretary • Unreported | 10 Aug 1991←34 Years→Current | Active | |
| Prism Sound Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
