| Company | Timeline | Status | |
| Pettiphers Farm Management Company Limited Director • Project Manager | 21 Feb 2006←19 Years→Current | Active | |
| Crawshaw Arborcare/Central London Tree Surveys Limited Director • Local Government Office | 1 May 2004←5 Years→31 Mar 2010 | Dissolved | |
| Crawshaw Arborcare/Central London Tree Surveys Limited Secretary • Unreported | 22 Aug 2002←7 Years→31 Mar 2010 | Dissolved | |
