| Company | Timeline | Status | |
| Cambridge Steiner School Project Director • Publisher | 4 Dec 2019←1 Year 9 Months→22 Sep 2021 | Active | |
| Open Book Publishers Community Interest Company Director • Unreported | 24 Sep 2008←17 Years→Current | Active | |
| Open Book Publishers Community Interest Company Secretary • Unreported | 24 Sep 2008←17 Years→Current | Active | |
