| Company | Timeline | Status | |
| Thomas Miller P&I Ltd Director • Director | 7 Oct 2006←19 Years→Current | Active | |
| Itopf Limited Director • Marine Insurer | 9 Oct 2000←11 Years→31 Oct 2011 | Active | |
| Thomas Miller Hamilton Ltd Director • Director | 31 Dec 1991←30 Years→22 Mar 2022 | Dissolved | |
