| Company | Timeline | Status | |
| Sibley Material Movements Limited Director • Company Secretary | 1 Jan 2001←19 Years→18 May 2020 | Active | |
| W T Sibley (Haulage) Limited Director • Company Secretary | 30 Aug 1991←28 Years→18 May 2020 | Active | |
| W T Sibley (Haulage) Limited Secretary • Unreported | 30 Aug 1991←28 Years→18 May 2020 | Active | |
| Sibley Material Movements Limited Secretary • Unreported | 30 Aug 1991←28 Years→18 May 2020 | Active | |
