| Company | Timeline | Status | |
| Northumbrian Water Share Scheme Trustees Limited Director • Assistant Company Secretary | 21 Dec 2009←4 Years→17 Apr 2014 | Active | |
| Waterco Six Limited Secretary • Assistant Company Secretary | 20 Oct 2006←7 Years→17 Apr 2014 | Active | |
| Wave Utilities Limited Director • Assistant Company Secretary | 3 Sep 2004←9 Years→15 Nov 2013 | Active | |
| Northumbrian Water Mexico Limited Secretary • Assistant Company Secretary | 3 Sep 2004←9 Years→17 Apr 2014 | Active | |
| Analytical & Environmental Services Limited Director • Assistant Company Secretary | 3 Sep 2004←9 Years→17 Apr 2014 | Active | |
| United Infrastructure Water Limited Secretary • Unreported | 30 Jun 2002←3 Years→8 Jul 2005 | Active | |
Imass Limited Secretary • Unreported | 30 Jun 2002←5 Months→23 Dec 2002 | Dissolved | |
