| Company | Timeline | Status | |
| John Martin Assets Limited Director • Retired | 3 Oct 2025←2 Months→Current | Active | |
| John Martin Accident Repairs Limited Director • Company Director | 13 Nov 1997←25 Years→27 Dec 2022 | Dissolved | |
| Perimeter Technology (UK) Limited Director • Company Director | 14 Sep 1994←28 Years→5 Sep 2023 | Dissolved | |
| Grampian Cars Limited Director • Dir | 10 Oct 1990←32 Years→27 Dec 2022 | Dissolved | |
| Murray Motor Company Limited Director • Company Director | 29 Dec 1989←33 Years→27 Dec 2022 | Dissolved | |
| Martin Motors (Glasgow) Limited Director • Company Director | 29 Dec 1989←33 Years→5 Sep 2023 | Dissolved | |
| Belmont Nissan Limited Director • Company Director | 29 Dec 1989←33 Years→27 Dec 2022 | Dissolved | |
| John Martin Holdings Limited Director • Company Director | 29 Dec 1989←35 Years→Current | Active | |
| Belmont Group Limited Director • Company Director | 29 Dec 1989←33 Years→27 Dec 2022 | Dissolved | |
| Martin Motors (Edinburgh) Limited Director • Company Director | 29 Dec 1989←33 Years→27 Dec 2022 | Dissolved | |
