| Company | Timeline | Status | |
| Sinclair Motor Holdings Limited Director • Garage Proprietor | 27 Mar 2002←23 Years→Current | Active | |
| Sinclair Garages (Newport) Ltd Director • Company Director | 11 Jul 1992←33 Years→Current | Active | |
| Sinclair Finance And Leasing Company Limited Director • Company Director | 25 Mar 1992←33 Years→Current | Active | |
| Sinclair Garages (Bridgend) Limited Director • Company Director | 7 Sep 1991←34 Years→Current | Active | |
| Sinclair Garages Limited Director • Company Director | 7 Sep 1991←34 Years→Current | Active | |
| Sinclair Garages (Port Talbot) Limited Director • Company Director | 7 Sep 1991←34 Years→Current | Active | |
