| Company | Timeline | Status | |
| Jarvis Holdings Limited Director • Unreported | 1 Dec 2015←9 Years→Current | Active | |
| Jarvis Group Trustees Limited Director • Unreported | 2 Jun 2008←17 Years→Current | Active | |
| David Jarvis Associates Limited Director • Unreported | 18 Jul 2007←18 Years→Current | Active | |
| Thirlwall Associates Ltd Secretary • Landscape Architect | 29 Apr 2003←22 Years→Current | Active | |
