| Company | Timeline | Status | |
| Anna Jahn Ltd Director • Unreported | 17 Apr 2025←7 Months→Current | Active | |
| PJ Fitness Limited Director • Director | 23 Nov 2018←1 Year 6 Months→22 May 2020 | Dissolved | |
| Jahn Holdings Limited Director • Director | 20 Nov 2018←1 Year 6 Months→22 May 2020 | Dissolved | |
| Anna Jahn Ltd Director • Chartered Accountant | 10 Aug 2018←3 Years→21 Feb 2022 | Active | |
