| Company | Timeline | Status | |
| Denholm Valvecare Limited Director • Company Director | 15 May 2008←4 Months→17 Sep 2008 | Dissolved | |
Denholm Oilfield Services (UK) Limited Director • Company Director | 1 Apr 2007←1 Year 6 Months→24 Oct 2008 | Dissolved | |
| SDL Nobel Limited Director • Company Director | 20 Oct 2005←3 Months→8 Feb 2006 | Active | |
Denholm Oilfield Services (UK) Limited Director • Company Director | 20 Oct 2005←3 Months→8 Feb 2006 | Dissolved | |
