| Company | Timeline | Status | |
| Exmoor Farm Limited Director • Director | 8 Apr 2020←1 Year 2 Months→8 Jun 2021 | Active | |
| Exmoor Limited Director • Director | 8 Apr 2020←1 Year 2 Months→8 Jun 2021 | Active | |
| Marl Capital Limited Director • Tax Advisor | 5 Sep 2019←5 Years→26 Jun 2025 | Active | |
| Vaara Limited Director • Tax Advisor | 11 Nov 2014←2 Months→22 Jan 2015 | Active | |
| Nightingale Private Office Limited Director • Managing Director | 19 May 2010←15 Years→20 Nov 2025 | Active | |
| Nightingale Corporate Directors (UK) Limited Director • Chartered Tax Adviser | 18 May 2010←15 Years→Current | Active | |
Mark Dean Wealth Management LLP Designated LLP Member • Unreported | 12 Feb 2010←1 Year 9 Months→30 Nov 2011 | Dissolved | |
| Longboat Tax Advisers LLP Designated LLP Member • Unreported | 28 Mar 2008←17 Years→31 Mar 2025 | Active | |
| Mark Davies & Associates Limited Director • Chartered Tax Adviser | 13 Aug 2007←18 Years→20 Nov 2025 | Active | |
