| Company | Timeline | Status | |
| Barrett Plant Training Limited Director • Unreported | 6 Apr 2023←2 Years 7 Months→Current | Active | |
| Barrett Plant Training Limited Director • Unreported | 6 Apr 2023←2 Years 6 Months→25 Oct 2025 | Active | |
| Barrett Excavation Limited Director • Unreported | 12 Apr 2021←4 Years→Current | Active | |
| Barrett Earthworks Limited Director • Unreported | 8 May 2019←6 Years→Current | Active | |
