| Company | Timeline | Status | |
| Sse Utility Services Limited Director • Civil Engineer | 28 Apr 1997←2 Years 1 Month→31 May 1999 | Active | |
| Volkerstevin Limited Director • Civil Engineer | 28 Mar 1992←→10 Apr 1991 | Active | |
| GT (Scotland) Construction Limited Director • Civil Engineer | 17 May 1991←7 Months→31 Dec 1991 | Dissolved | |
