| Company | Timeline | Status | |
| Dowland Natant Limited Director • Naval Architect | 8 Jul 2025←6 Months→Current | Active | |
Natant Innovation Limited Director • Naval Architect | 19 Feb 2013←7 Years→5 Jan 2021 | Dissolved | |
| Spruce Park Management Company Limited Director • Naval Architect | 3 Oct 2002←23 Years→Current | Active | |
| Saffron Court Management Company Limited Director • Naval Architect | 2 Jul 1991←1 Year 2 Months→21 Sep 1992 | Active | |
