| Company | Timeline | Status | |
| Michael Jamieson Training Academy Limited Director • Director | 1 Oct 2021←4 Years→Current | Active | |
| Grid Glasgow Ltd Director • Sports Coach | 16 Aug 2020←1 Year→7 Sep 2021 | Dissolved | |
| Michael Jamieson Swim Academy Ltd Director • Swimming Coach | 11 Sep 2017←8 Years→Current | Active | |
| Jamieson Swim Limited Director • Swimmer | 22 Aug 2012←12 Years→22 Oct 2024 | Dissolved | |
