| Company | Timeline | Status | |
| Entremain Limited Director • Director | 16 Mar 2021←4 Years→Current | Active | |
| Prestwick Law Ltd Director • Director | 15 Sep 2017←8 Years→Current | Active | |
Scottish Boatowners Mutual Insurance Association (The) Director • Director | 7 Sep 2017←2 Years 4 Months→28 Jan 2020 | Dissolved | |
| Thomas Miller Specialty Holdings Limited Director • Director | 1 Dec 2015←1 Year 3 Months→8 Mar 2017 | Active | |
| Navata Global Underwriting Agency Limited Director • Director | 1 Dec 2015←1 Year 3 Months→8 Mar 2017 | Active | |
| Davies Johnson Law Ltd Director • Director | 30 Sep 2015←9 Years→17 Jun 2025 | Dissolved | |
| Thomas Miller (UK) Holdings Company Ltd Director • Director | 10 Dec 2013←11 Years→Current | Active | |
| Shearwater Law Ltd Director • Director | 28 Jun 2013←11 Years→19 Aug 2024 | Active | |
| Thomas Miller Professions Ltd Director • Chief Executive Officer | 14 Sep 2012←2 Months→27 Nov 2012 | Active | |
| TMC Trustee Company Limited Director • Director | 23 Jul 2011←9 Years→25 Mar 2021 | Active | |
