| Company | Timeline | Status | |
| Clearfume U.K. Limited Secretary • Unreported | 21 Dec 2007←4 Years→1 Mar 2012 | Active | |
21C.It Limited Director • Company Director | 29 May 2002←1 Year→18 Jun 2003 | Dissolved | |
| Guest Investments Ltd Director • Managing Director | 5 Feb 1999←1 Month→12 Mar 1999 | Active | |
| J O'Brien Commissioning & Maintenance Services Limited Director • Company Director | 18 Dec 1998←11 Months→29 Nov 1999 | Dissolved | |
| J O'Brien Commissioning & Maintenance Services Limited Secretary • Company Director | 18 Dec 1998←11 Months→29 Nov 1999 | Dissolved | |
| Philadelphia Scientific (U.K.) Limited Secretary • Unreported | 4 Jun 1997←4 Years→1 May 2002 | Active | |
| Concrete Drilling Services Ltd Secretary • Unreported | 6 Nov 1995←6 Years→5 Apr 2002 | Active | |
| Clearfume Limited Secretary • Unreported | 1 Jun 1991←20 Years→20 Feb 2012 | Dissolved | |
