| Company | Timeline | Status | |
| Southern Ground Testing Limited Director • Geological Engineer | 23 Dec 2002←22 Years→Current | Active | |
| Southern Ground Testing Limited Secretary • Geological Engineer | 23 Dec 2002←22 Years→Current | Active | |
| Southern Ground Testing Limited Director • Geological Engineer | 23 Dec 2002←21 Years→1 Sep 2024 | Active | |
| Southern Ground Testing Limited Secretary • Geological Engineer | 23 Dec 2002←21 Years→1 Sep 2024 | Active | |
