| Company | Timeline | Status | |
| Schauenburg Analytics Ltd Director • Unreported | 21 Dec 2012←13 Years→19 Dec 2025 | Active | |
| Sepsolve Analytical Limited Director • Unreported | 3 Jul 2002←23 Years→19 Dec 2025 | Active | |
| Markes International Limited Director • Unreported | 5 Aug 1997←28 Years→19 Dec 2025 | Active | |
