- IWS - Institute for Modelling Hydraulic and Environmental Systems
- IWS - Stochastic Simulation and Safety Research for Hydrosystems (LS3)
- IWS - Dept. of Hydromechanics and Modelling of Hydrosystems
- IWS - Department of Hydrology and Geohydrology (LHG)
- IWS - Research Facility for Subsurface Remediation (VEGAS)
- ISWA - Institute for Sanitary Engineering, Water Quality and Solid Waste Management