| Company | Timeline | Status | |
| Land Skills Training & Assessments Ltd Secretary • Aboriculturist  | 13 Jun 2006←19 Years→Current  | Active  | |
| Land Skills Training & Assessments Ltd Director • Aboriculturist  | 13 Jun 2006←19 Years→Current  | Active  | |
Collis Tree Services Limited Director • Arboriculturist  | 26 Sep 2001←10 Years→31 May 2012  | Dissolved  | |
Collis Tree Services Limited Secretary • Unreported  | 26 Sep 2001←10 Years→31 May 2012  | Dissolved  | |
