| Company | Timeline | Status | |
| Omar Homes Limited Director • Company Director | 1 Apr 2004←29 Days→30 Apr 2004 | Active | |
| John Brown Limited Director • Director | 29 Feb 2000←25 Years→15 Oct 2025 | Active | |
| Clyde Bergemann Investments Limited Director • Chief Operating Officer | 1 Jun 1998←9 Months→12 Mar 1999 | Dissolved | |
| Heaton Power Limited Director • Company Director | 1 May 1996←4 Months→25 Sep 1996 | Active | |
| Davy McKee (Sheffield) Limited Director • Sales | 30 Nov 1993←2 Years 7 Months→2 Jul 1996 | Liquidation | |
| Kvaerner Energy Limited Director • Director | 7 Sep 1991←4 Years→24 Apr 1996 | Liquidation | |
