| Company | Timeline | Status | |
| Denholm Oilfield Services Group Limited Director • Company Director | 6 Feb 2004←2 Months→30 Apr 2004 | Dissolved | |
| Ably Access Ltd Director • Company Director | 12 Feb 2001←3 Years→30 Apr 2004 | Dissolved | |
| SDL Nobel Limited Director • Managing Director | 26 Jul 2000←3 Years→30 Apr 2004 | Active | |
| Denholm Contracting Limited Director • Company Director | 1 Feb 1996←8 Years→30 Apr 2004 | Dissolved | |
| Denholm Oilfield Services (Kazakhstan) Limited Director • Company Director | 1 Feb 1996←9 Years→4 Aug 2005 | Active | |
| Key Scaffolding Limited Director • Company Director | 31 Dec 1990←30 Years→27 Sep 2021 | Dissolved | |
