| Company | Timeline | Status | |
| Jan Barker Limited Director • Director | 28 Nov 2017←7 Years→19 Aug 2025 | Dissolved | |
| Jantar Publishing Ltd Director • Director | 31 Mar 2011←1 Year 7 Months→31 Oct 2012 | Active | |
| Bay Language Books Ltd Director • Bookseller | 27 Nov 2005←19 Years→Current | Active | |
| Bay Language Books Ltd Secretary • Unreported | 27 Nov 2005←19 Years→Current | Active | |
