| Company | Timeline | Status | |
| The Institution Of Engineers And Shipbuilders In Scotland Ltd Director • Chartered Engineer | 22 Mar 2023←2 Years 9 Months→Current | Active | |
| Kelvin Harbour Limited Director • Company Director | 22 Nov 2022←3 Years→Current | Active | |
| Clyde Maritime Centre Limited Director • Company Director | 22 Nov 2022←3 Years→Current | Active | |
| The Institution Of Engineers And Shipbuilders In Scotland Ltd Director • Engineer | 17 Sep 2019←1 Year 1 Month→9 Nov 2020 | Active | |
| The Tall Ship Glenlee Trust Director • Company Director | 15 Apr 2019←6 Years→Current | Active | |
| The Institution Of Engineers In Scotland Director • Naval Architect | 1 Oct 2013←12 Years→Current | Active | |
| Sir J.H. Biles (Naval Services) Limited Director • Unreported | 23 Mar 2006←19 Years→Current | Active | |
| The Institution Of Engineers In Scotland Director • Naval Architect | 1 Aug 2001←10 Years→10 Apr 2012 | Active | |
| Lobnitz Marine Holdings Limited Director • Naval Architect | 25 May 1995←30 Years→Current | Active | |
| Seadrec Limited Director • Naval Architect | 25 May 1995←30 Years→Current | Active | |
