| Company | Timeline | Status | |
| Leon P. Marcus Limited Director • Director | 1 Aug 2025←5 Months→Current | Active | |
| Aramis Solutions Limited Director • Financial Consultant | 24 Jun 2025←7 Months→Current | Active | |
| Leon Marcus Ltd Director • Company Director | 24 Feb 2020←3 Years→23 Jan 2024 | Dissolved | |
| CHJ (UK And Europe) Ltd Director • Financial Consultant | 9 Jan 2013←13 Years→Current | Active | |
| Mark Kaye & Associates Limited Director • Financial Consultant | 16 Sep 1998←27 Years→Current | Active | |
