| Company | Timeline | Status | |
| Clarke1979 Ltd Director • Chartered Engineer | 16 Aug 2022←3 Years→Current | Active | |
| Oughtrington Community Centre Director • Director | 18 May 2011←2 Years→1 Jun 2013 | Active | |
| Clarke & Associates Ltd Director • Chartered Engineer | 4 Sep 1998←23 Years→30 Jun 2022 | Active | |
