| Company | Timeline | Status | |
| Halligan Maritime Limited Director • Director | 10 Feb 2020←5 Years→Current | Active | |
| Wilsonhalligan Limited Director • Marine Consultant | 15 Jan 2007←8 Years→31 Mar 2015 | Active | |
| Offshore Maritime Ltd Director • Marine Consultant | 30 Aug 2006←14 Years→11 May 2021 | Dissolved | |
| Inserve Limited Director • Marine Engineer | 14 Jan 2003←3 Years→3 Sep 2006 | Active | |
