| Company | Timeline | Status | |
| Puresep Water Technologies Limited Director • Technical Manager | 1 Mar 2004←6 Years→21 May 2010 | Active | |
| Envirogen Group UK Limited Director • Technical Manager | 17 Dec 2003←6 Years→21 May 2010 | Active | |
| Puresep Technologies Limited Director • Technical Director | 20 Nov 2002←7 Years→21 May 2010 | Active | |
| Filtrox Carlson Limited Director • Unreported | 1 Jan 1998←3 Years→24 Apr 2001 | Active | |
