SJE Ecohydraulic Engineering GmbH (SJE) is a spin-off from the Department of Hydraulic Engineering and Water Resources Management at the Institute for Modelling Hydraulic and Environmental Systems (IWS) at the Universit├Ąt Stuttgart. Since 2001 the firm has provided engineering services in the fields of river hydraulics, river ecology, hydraulic structures and hydropower and specializes in the application and development of advanced simulation technologies. SJE provides engineering services to assess and mitigate the negative impacts of hydropower, by accounting for the local flow field conditions in concert with river unique morphological characteristics while maintaining optimal hydropower operations A key product of SJE has been the development of the simulation software CASiMiR, which is primarily used to investigate water management problems, with a strong focus on hydropower. SJE has partnerships with leading academic institutions dealing with the investigation of river systems such as the University of Stuttgart, the Technical University of Munich, the EAWAG and Technical University in Z├╝rich (CH), the University of Natural Resources and Life Sciences in Vienna (A), the University of Lyon (F), the Research Institute for Nature and Forest (INBO) in Brussels (B), the University of Lisbon (POR), the University of Trento (IT), and the Universidad Valencia (E), and specializes in turning cutting-edge research into engineering practice.