| Company | Timeline | Status | |
| Institution Of Water And Environmental Management(The) Secretary • Unreported | 15 Nov 2000←7 Years→1 Jul 2008 | Dissolved | |
| Institute Of Water Pollution Control(The) Secretary • Unreported | 15 Nov 2000←7 Years→1 Jul 2008 | Dissolved | |
| Institution Of Public Health Engineers(The) Secretary • Unreported | 15 Nov 2000←7 Years→31 Jul 2008 | Dissolved | |
| Institution Of Water Engineers And Scientists (The) Secretary • Unreported | 15 Nov 2000←7 Years→1 Jul 2008 | Dissolved | |
| Ciwem Services Limited Secretary • Unreported | 1 Jan 1998←9 Years→30 Nov 2007 | Active | |
| Ciwem Professional Services Limited Secretary • Unreported | 1 Jan 1998←9 Years→30 Nov 2007 | Active | |
