| Company | Timeline | Status | |
| Drive System Design Limited Secretary • Unreported | 6 Jul 2007←11 Years→15 Mar 2019 | Active | |
| Integrated Water Services Limited Secretary • Unreported | 10 Nov 2004←3 Years→19 Dec 2007 | Active | |
| IWS Pipeline Services Limited Secretary • Unreported | 6 Apr 2004←3 Years→19 Dec 2007 | Active | |
| IWS Water Hygiene Services Limited Secretary • Unreported | 6 Apr 2004←3 Years→19 Dec 2007 | Dissolved | |
| IWS M&E Services Limited Secretary • Unreported | 6 Apr 2004←3 Years→19 Dec 2007 | Active | |
| Ssi Services (UK) Limited Secretary • Unreported | 6 Apr 2004←3 Years→19 Dec 2007 | Active | |
| Pump Services Limited Secretary • Unreported | 6 Apr 2004←3 Years→19 Dec 2007 | Active | |
| Recoup Revenue Management Limited Secretary • Unreported | 6 Apr 2004←3 Years→19 Dec 2007 | Dissolved | |
| South Staffordshire Water Holdings Limited Secretary • Unreported | 6 Apr 2004←3 Years→19 Dec 2007 | Dissolved | |
| South Staffordshire Infrastructure Services Limited Secretary • Unreported | 6 Apr 2004←3 Years→19 Dec 2007 | Dissolved | |
