| Company | Timeline | Status | |
| JFK Developments (Tring) Limited Director • Company Director | 1 Sep 2015←6 Years→16 Nov 2021 | Dissolved | |
| Lower End Garage Limited Director • Garage Proprietor | 28 Aug 1991←31 Years→13 Sep 2022 | Active | |
| John Keen (Tring Transport) Limited Director • Group Proprietor | 10 May 1991←31 Years→13 Sep 2022 | Active | |
| Tring Homes Limited Director • Property Developer | 2 Apr 1991←31 Years→13 Sep 2022 | Active | |
