| Company | Timeline | Status | |
| Marbek Stone Ltd Director • Operations Manager | 8 Sep 2024←1 Year 1 Month→Current | Active | |
| Wha Design Ltd Director • Building Designer | 4 Sep 2017←8 Years→Current | Active | |
| Wha Design Ltd Director • Building Designer | 4 Sep 2017←6 Years→23 Aug 2024 | Active | |
| Wha Ltd Director • Structural Engineer | 19 Dec 2016←8 Years→Current | Active | |
| Wha Ltd Director • Structural Engineer | 19 Dec 2016←8 Years→14 Feb 2025 | Active | |
| Mark Heath Consulting Ltd Director • Structural Engineering | 22 Sep 2015←10 Years→Current | Active | |
| A.A. Gibbons Limited Director • Structural Engineer | 22 May 2012←4 Years→30 Jun 2016 | Active | |
