| Company | Timeline | Status | |
| Darchem Holdings Limited Director • Vice President | 16 Dec 2005←1 Year 5 Months→18 May 2007 | Active | |
| Darchem Engineering Limited Director • Vice President | 16 Dec 2005←1 Year 5 Months→18 May 2007 | Active | |
Insumat Limited Director • Vice President | 16 Dec 2005←1 Year 5 Months→18 May 2007 | Dissolved | |
| Muirhead Aerospace Limited Director • Chief Executive Officer | 9 Feb 2005←2 Years 3 Months→18 May 2007 | Active | |
| Weston Aerospace Limited Director • Chief Executive Officer | 1 Jul 2003←3 Years→18 May 2007 | Active | |
Weston Aero 2003 Director • Managing Director | 11 Jun 2003←3 Years→18 May 2007 | Dissolved | |
| Pressure Systems International Limited Director • Managing Director | 11 Jun 2003←3 Years→18 May 2007 | Active | |
WGL (2003) Limited Director • Managing Director | 13 Jun 2001←6 Days→19 Jun 2001 | Dissolved | |
Weston Aero 2003 Director • Managing Director | 4 Oct 1999←1 Year 8 Months→19 Jun 2001 | Dissolved | |
| Society Of British Aerospace Companies (The) Director • Managing Director | 28 Apr 1999←3 Years→18 Dec 2002 | Dissolved | |
