| Company | Timeline | Status | |
Hangman Bars Limited Director • School Inspector | 24 Nov 2008←1 Year 7 Months→29 Jun 2010 | Dissolved | |
| Helen Platt Ltd Secretary • School Inspector | 20 Jun 2006←19 Years→Current | Active | |
| J E Platt Limited Director • School | 21 Apr 1999←22 Years→21 Dec 2021 | Dissolved | |
