| Company | Timeline | Status | |
Thinking Math Ltd Director • University Lecturer | 10 Aug 2011←4 Years→15 Mar 2016 | Dissolved | |
| Let's Think Forum Director • University Lecturer | 10 Aug 2011←8 Years→18 Oct 2019 | Active | |
| The Mathematical Association Director • Consultant Education | 3 Apr 2008←2 Years 5 Months→13 Sep 2010 | Active | |
