| Company | Timeline | Status | |
| Yacht Design Technology Ltd Director • Naval Architect | 6 Mar 2014←11 Years→Current | Active | |
Ker Yachting Ltd Director • Designer | 15 Sep 2004←10 Years→11 Aug 2015 | Dissolved | |
| Ker Associates Limited Director • Naval Architect | 25 Jul 1999←26 Years→Current | Active | |
