| Company | Timeline | Status | |
| Arisaig Limited Director • Builder | 27 Sep 2002←23 Years→Current | Active | |
| Ralph Marks (Builders) Limited Director • Unreported | 1 Jan 1993←33 Years→Current | Active | |
| Ralph Marks Construction Limited Director • Builder | 1 Jan 1993←33 Years→Current | Active | |
