| Company | Timeline | Status | |
| Syndicart Limited Director • Company Director | 4 Sep 2013←10 Years→23 Jan 2024 | Dissolved | |
| Welding Institute(The) Director • Materials Eng | 12 Dec 2006←5 Years→14 Sep 2012 | Active | |
Document Control Services Limited Director • Consulting Engineer | 1 Apr 2000←2 Years 1 Month→17 May 2002 | Dissolved | |
Document Control Services Limited Secretary • Consulting Engineer | 1 Apr 2000←2 Years 1 Month→17 May 2002 | Dissolved | |
| John Marlow Limited Director • Technical Director | 30 Apr 1991←34 Years→Current | Active | |
