For over 90 years, HOLINGER has been solving engineering and scientific tasks in various specialist areas related to the water cycle.

With more than 700 employees at over 30 locations, we develop and support around 4'500 projects every year in multidisciplinary teams. We are leaders in the development of solutions in Switzerland, Germany and Luxembourg in the specialist areas of wastewater, construction, digital planning, energy, industry, urban drainage, environment & sustainability, hydraulic engineering and water supply.