| Company | Timeline | Status | |
| Optical Surfaces Holdings Limited Director • Director | 30 Jun 2025←6 Months→Current | Active | |
| Colleen Harris Associates Ltd Director • Director | 31 Aug 2006←4 Years→1 Sep 2010 | Active | |
| Optical Surfaces Limited Director • Company Director | 28 Aug 1991←34 Years→Current | Active | |
