| Company | Timeline | Status | |
| Ryan Tax Services Ni Limited Director • Director | 30 May 2025←6 Months→Current | Active | |
| Granted Consultancy Limited Director • Unreported | 30 Dec 2022←2 Years 11 Months→Current | Active | |
| Catax Europe Limited Director • Chief Executive Officer | 28 Feb 2022←9 Months→13 Dec 2022 | Dissolved | |
| Catax London Limited Director • Chief Executive Officer | 28 Feb 2022←9 Months→13 Dec 2022 | Dissolved | |
| Catax Ireland Limited Director • Chief Executive Officer | 28 Feb 2022←9 Months→13 Dec 2022 | Dissolved | |
| Catax Group Canada Limited Director • Chief Executive Officer | 28 Feb 2022←9 Months→13 Dec 2022 | Dissolved | |
| Research & Development Tax Solutions (Holdings) Limited Director • Unreported | 28 Feb 2022←3 Years→Current | Active | |
| Tax Consultancy Services Limited Director • Chief Executive Officer | 28 Feb 2022←3 Years→Current | Active | |
| Research & Development Tax Solutions Limited Director • Unreported | 28 Feb 2022←3 Years→Current | Active | |
| Fast Track Sme Ltd Director • Chief Executive Officer | 28 Feb 2022←3 Years→Current | Active | |
