| Company | Timeline | Status | |
Stackamals Limited Director • Engineer | 20 Oct 2016←3 Years→28 Jan 2020 | Dissolved | |
| Kalogroulis Design Ltd Director • Unreported | 22 Nov 2007←17 Years→Current | Active | |
| Kalogroulis Design Ltd Secretary • Unreported | 22 Nov 2007←17 Years→Current | Active | |
