| Company | Timeline | Status | |
| Rotary Test Drilling (Training And Accreditation) Limited Secretary • Unreported | 1 Apr 2003←22 Years→Current | Active | |
| Rotary Test Drilling Limited Secretary • Unreported | 12 Dec 1991←33 Years→Current | Active | |
| Rotary Test Drilling Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
