| Company | Timeline | Status | |
Transen Sustainable Energy Systems Ltd Director • Quantity Surveyor  | 16 Jul 2007←7 Years→13 Apr 2015  | Dissolved  | |
| Sustainable Earth Limited Director • Engineer  | 18 Jul 2002←23 Years→Current  | Active  | |
| Nethan Valley Timber Frame Homes Limited Director • Engineer  | 12 Jul 2002←23 Years→Current  | Active  | |
| Lesmahagow Land And Property Company Limited Director • Engineer  | 27 May 1999←26 Years→Current  | Active  | |
| Clydebuilt Homes Limited Director • Engineer  | 8 Feb 1999←26 Years→Current  | Active  | |
| W.I. Meikle (Construction Services) Limited Director • Engineer  | 12 Dec 1994←30 Years→Current  | Active  | |
