| Company | Timeline | Status | |
| Treework Services Limited Secretary • Co Director  | 1 Mar 2005←20 Years→Current  | Active  | |
The Tree Advice Trust Director • Arborist / Consultant  | 10 Jan 2000←6 Years→31 Oct 2006  | Dissolved  | |
| Tree Aid Director • Director/arborist Tree Managem  | 28 May 1999←1 Year 10 Months→1 Apr 2001  | Active  | |
| Ancient Tree Forum Director • Arboricultural Consultant  | 20 May 1999←19 Years→14 Mar 2019  | Active  | |
| Treework Services Limited Director • Unreported  | 27 Apr 1982←43 Years→Current  | Active  | |
