| Company | Timeline | Status | |
| The Constable Educational Trust Limited Director • Headmaster | 1 Sep 2003←1 Year 9 Months→21 Jun 2005 | Dissolved | |
| 8 Draycott Management Company Limited Director • Headmaster/chief Executive | 5 Apr 2001←24 Years→Current | Active | |
| Northamptonshire Independent Grammar School Charity Trust Limited Secretary • Headmaster | 16 May 1999←3 Years→9 Sep 2002 | Active | |
