| Company | Timeline | Status | |
| Protool Workshop Supplies Ltd Director • Engineering Contractor  | 31 May 2007←1 Month→18 Jul 2007  | Dissolved  | |
| Grant Properties (Fife) Limited Director • Construction Engineer  | 15 Jul 1998←27 Years→Current  | Liquidation  | |
| KMS (Fife) Limited Director • Construction Engineer  | 22 Apr 1994←31 Years→4 Sep 2025  | Dissolved  | |
| Grant Construction Services (Fife) Limited Director • Construction Engineer  | 1 Dec 1988←36 Years→19 Sep 2025  | Dissolved  | |
