| Company | Timeline | Status | |
| Jack Brothers Seafoods Ltd Director • Director | 23 Oct 2024←1 Year→Current | Active | |
| Jack Property Alliance Ltd Director • Managing Director | 20 Jun 2022←3 Years→Current | Active | |
| Alexander Jack (Fishing) Limited Director • Fisherman | 13 Nov 2003←21 Years→Current | Active | |
