| Company | Timeline | Status | |
| CH Property Trustee Jarvis Limited Director • Director | 5 Nov 2012←13 Years→Current | Active | |
| Jarvis Group Trustees Limited Director • Landscape Architect | 24 May 2006←12 Years→24 Mar 2019 | Active | |
| David Jarvis Associates Limited Director • Landscape Architect | 7 Mar 1992←27 Years→25 Apr 2019 | Active | |
| Jarvis Holdings Limited Director • Landscape Architect | 31 Mar 1991←28 Years→25 Apr 2019 | Active | |
