| Company | Timeline | Status | |
| The Buckinghamshire Grammar Schools Director • Headteacher | 18 Jul 2013←4 Years→31 Dec 2017 | Active | |
| Buckinghamshire Learning Trust Director • Headmaster | 22 Apr 2013←2 Years 11 Months→1 Apr 2016 | Dissolved | |
| Marlow Education Trust Director • Headmaster | 6 May 2011←12 Years→30 Apr 2024 | Active | |
| National Association For Able Children In Education Director • Headteacher | 28 May 2008←2 Years 11 Months→14 May 2011 | Active | |
