| Company | Timeline | Status | |
| GFZ John Limited Director • Property Developer | 25 May 2018←5 Years→27 Jun 2023 | Dissolved | |
| SFL Investments Limited Director • Director | 29 Jun 2016←8 Years→8 Oct 2024 | Dissolved | |
| GFZ Holdings Limited Director • Director | 5 Feb 2015←10 Years→Current | Active | |
| GFZ Properties Limited Director • Company Director | 17 Jan 2013←9 Years→27 Jul 2022 | Dissolved | |
| John Kirk House Management Company Limited Director • Director | 23 May 2012←2 Years 3 Months→5 Sep 2014 | Active | |
| GFZ Developments Limited Director • Director | 22 Jun 2011←13 Years→7 Jun 2025 | Dissolved | |
| MHL Build Limited Director • None | 26 Apr 2010←15 Years→Current | Active | |
| GFZ Investments Limited Director • Property Developer | 24 Oct 2008←17 Years→Current | Active | |
Exane Limited Director • Investment Advice | 24 Jan 2007←4 Years→24 May 2011 | Converted/Closed | |
| 12 Stanhope Place Management Company Limited Director • Investment Analyst | 14 Feb 2003←7 Years→1 Jul 2010 | Active | |
