| Company | Timeline | Status | |
| Dioxi Ltd Director • Company Director | 7 Aug 2009←2 Years 7 Months→12 Mar 2012 | Dissolved | |
| Pollution & Process Monitoring Limited Director • Electrical Engineer | 14 Mar 1992←33 Years→Current | Active | |
| Parkwide Limited Director • Electrical Engineer | 20 Jul 1991←34 Years→Current | Active | |
