| Company | Timeline | Status | |
| Optical Surfaces Holdings Limited Director • Unreported | 30 Jun 2025←4 Months→Current | Active | |
| Colleen Harris Associates Ltd Director • Director | 31 Aug 2006←4 Years→1 Sep 2010 | Active | |
| Colleen Harris Associates Ltd Secretary • Unreported | 31 Aug 2006←3 Years→31 Aug 2009 | Active | |
| Optical Surfaces Limited Director • Unreported | 28 Aug 1991←34 Years→Current | Active | |
