| Company | Timeline | Status | |
| Tax Volunteers Service Company Limited Director • Retired Civil Servant | 28 Mar 2017←6 Years→17 Oct 2023 | Dissolved | |
| Taxaid UK Director • Retired Civil Servant | 23 Oct 2012←13 Years→Current | Active | |
| Taxaid UK Director • Retired Civil Servant | 23 Oct 2012←12 Years→1 Jul 2025 | Active | |
