| Company | Timeline | Status | |
| Bookshop Bartek & Szymon Limited Director • Unreported | 7 Feb 2025←9 Months→Current | Active | |
| Quattro Solutions Limited Director • Director | 23 Aug 2023←2 Years 2 Months→Current | Active | |
| Quattro Solutions Limited Director • Director | 23 Aug 2023←1 Year 5 Months→10 Feb 2025 | Active | |
| Ksiegarnia Bartek Limited Director • Unreported | 1 Jun 2021←4 Years→Current | Active | |
