| Company | Timeline | Status | |
| Tonchev Developments Limited Director • Engineer | 14 May 2021←4 Years→17 Jun 2025 | Dissolved | |
| Tonodim Ltd Director • Unreported | 24 Dec 2019←5 Years→Current | Active | |
| GSG 99 Limited Director • Unreported | 16 Oct 2019←6 Years→Current | Active | |
