| Company | Timeline | Status | |
| Thornton Tomasetti Limited Director • Physicist | 9 Jan 2019←6 Years→30 Sep 2025 | Active | |
| Thornton Tomasetti Warrington Limited Director • Physicist | 29 Jun 2018←7 Years→30 Sep 2025 | Active | |
| MFD Security Limited Director • Physicist | 1 Jun 2018←2 Years 7 Months→12 Jan 2021 | Dissolved | |
| MFD Consultancy Limited Director • Physicist | 1 Jun 2018←2 Years 9 Months→16 Mar 2021 | Dissolved | |
| Thornton Tomasetti Romsey Limited Director • Physicist | 1 Jun 2018←7 Years→30 Sep 2025 | Active | |
| Thornton Tomasetti Holdings UK Ltd Director • Physicist | 1 May 2018←7 Years→30 Sep 2025 | Active | |
| Survivability Consulting Limited Director • Chartered Physicist | 8 Mar 2016←4 Years→21 Dec 2020 | Active | |
| Thornton Tomasetti Defence Limited Director • Scientist | 30 Jun 1999←26 Years→30 Sep 2025 | Active | |
