| Company | Timeline | Status | |
| Avoncliff Hydropower Ltd Director • Company Director | 24 Jan 2017←8 Years→Current | Active | |
| Training & Coating Consultants Limited Director • Director | 7 Jul 2015←10 Years→Current | Active | |
| Transocean Anti-Corrosion Limited Director • Corrosion Engineer | 18 Jul 2003←22 Years→Current | Active | |
| Lithgow Associates Limited Director • Director | 3 Apr 1991←18 Years→31 Mar 2009 | Dissolved | |
