| Company | Timeline | Status | |
| Marine Pollution Control Limited Director • Director | 31 Dec 1992←30 Years→27 Jun 2023 | Dissolved | |
| International Spill Consultancy Organisation Limited Director • Director | 31 Dec 1991←30 Years→7 Apr 2022 | Active | |
| International Spill Consultancy Organisation Limited Director • Unreported | 1 Jan 1970←52 Years→7 Apr 2022 | Active | |
