| Company | Timeline | Status | |
| Thomas Miller Claims Management Limited Director • Director | 15 May 2018←1 Year 8 Months→5 Feb 2020 | Active | |
| Signum Services Ltd Director • Unreported | 1 Jan 2015←1 Year 3 Months→25 Apr 2016 | Dissolved | |
| Thomas Miller P&I Ltd Director • Director | 28 Feb 2011←14 Years→Current | Active | |
| Thomas Miller Hamilton Ltd Director • Director | 28 Feb 2011←11 Years→22 Mar 2022 | Dissolved | |
| The United Kingdom Mutual Steam Ship Assurance Association Limited Director • Lawyer | 28 Feb 2011←1 Day→28 Feb 2011 | Active | |
| Thomas Miller (Management Services) Ltd Director • Unreported | 8 Feb 2011←14 Years→31 Jul 2025 | Dissolved | |
| Thomas Miller Defence Ltd Director • Lawyer | 1 Mar 2007←3 Years→8 Feb 2011 | Active | |
