| Company | Timeline | Status | |
| The Diocese Of Westminster Academy Trust Director • Unreported | 15 Dec 2025←1 Month→Current | Active | |
| Osprey Aerospace Limited Director • Unreported | 10 May 2022←3 Years→30 Dec 2025 | Dissolved | |
| Together In Safety Director • Unreported | 2 Nov 2021←2 Years 7 Months→3 Jun 2024 | Active | |
| Thomas Miller Healthcare Trustees Ltd Director • Unreported | 15 Jan 2020←6 Years→Current | Active | |
Codal Limited Director • Unreported | 16 Mar 2015←3 Years→22 May 2018 | Dissolved | |
| BLP Technical Services (UK) Ltd Director • Unreported | 29 May 2014←11 Years→Current | Active | |
| The Occupational Pensions Defence Union Limited Director • Unreported | 17 Jan 2014←4 Years→11 Dec 2018 | Active | |
| TMC (DC Scheme) Trustee Company Limited Director • Unreported | 1 Nov 2013←2 Years 2 Months→31 Dec 2015 | Dissolved | |
| Thomas Miller & Co. Limited Director • Unreported | 4 Sep 2012←13 Years→Current | Active | |
| Thomas Miller Professional Indemnity (Holdings) Limited Director • Unreported | 1 Jun 2012←11 Years→29 Aug 2023 | Dissolved | |
