| Company | Timeline | Status | |
| Schiedel Rite-Vent Limited Director • Director | 9 Jul 2003←1 Year 3 Months→15 Oct 2004 | Active | |
| Rite-Vent Limited Director • Commercial Director | 24 Nov 1999←6 Years→3 Jan 2006 | Active | |
| Hevatech Limited Director • Director | 1 Jun 1999←7 Years→20 Nov 2006 | Dissolved | |
