| Company | Timeline | Status | |
| David Harrison Handling Solutions Limited Director • Company Director | 12 Sep 2002←23 Years→Current | Active | |
Proguard Safety Systems Limited Director • Agricultural Machinery Sales | 15 Aug 2000←16 Years→6 Dec 2016 | Dissolved | |
| Ely Masonic Hall Limited Director • Agricultural Engineer | 16 Jun 1996←24 Years→24 Mar 2021 | Active | |
