| Company | Timeline | Status | |
| Mac Environmental Ltd Director • Environmental Analyst | 26 Oct 2018←7 Years→Current | Active | |
| Airtech Analysis (UK) Ltd Director • Enviromental Analyst | 2 Apr 2016←9 Years→Current | Active | |
| Airtech Analysis Ltd Director • Environmental Analyst | 27 Jun 1991←32 Years→5 Feb 2024 | Active | |
