| Company | Timeline | Status | |
| Durkin Power Engineering Limited Secretary • Company Secretary | 1 Sep 1995←30 Years→Current | Active | |
| Durkin Civil Engineering Limited Secretary • Unreported | 27 Feb 1992←31 Years→1 Mar 2023 | Active | |
| Durkin Civil Engineering Limited Director • Secretary | 27 Feb 1992←25 Years→22 Dec 2017 | Active | |
