Your engineering company for solutions in the water cycle

 

With more than 680 employees at over 30 locations, we develop and support around 2,500 projects in 13 countries 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, geology, urban drainage, environment/sustainability, hydraulic engineering and water supply. To this end, we utilise the creative power of engineering and nature, science and technology and our experience. In this way, we realise economical solutions from a single source that are also ecologically forward-looking thanks to resource-saving processes and technologies. In this way, we set new standards and create added value for people and the environment - today for tomorrow and for people and nature.
We have been doing this for over 90 years and will continue to do so.

Updates

Media release: construction of a new wastewater treatment plant in Stahnsdorf
News

Media release: construction of a new wastewater treatment plant in Stahnsdorf

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Revitalisation of the Dorfbach and Giessenbach streams in Küssnacht: a project for people and nature
News, Hydraulic engineering

Revitalisation of the Dorfbach and Giessenbach streams in Küssnacht: a project for people and nature

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Our competences at a glance

Waste water

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Construction

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Energy

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Urban drainage

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Environment & sustainability

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Hydraulic engineering

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Water supply

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Digital planning

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STORIES

 

Clean drinking water through natural filtration

Despite ealier attempts to modernise it, the drinking water infrastructure in the village of Yrdyk in eastern Kyrgyzstan is in a sorry state. You can help change that with a donation to Engineers Without Borders.

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Insights & backgrounds of our experts

The future in our heads
People

The future in our heads

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Keeping pace with digital transformation
People

Keeping pace with digital transformation

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Committed to the future of settlements
People

Committed to the future of settlements

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Projects

Intelligent solutions - for future generations

HOLINGER's claim is to always be one step ahead. That is why we invest in research, development and innovation to make the latest technologies and processes accessible in our projects. 

District heating from Life Science PARK

District heating from Life Science PARK

Muttenz (BL), Switzerland

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Advising water supply companies

Advising water supply companies

Syrdarya Province, Uzbekistan

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Recycling water for service use

Recycling water for service use

Schweinfurt, Germany

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Securing the water supply with Open-BIM

Securing the water supply with Open-BIM

Lake Constance, Switzerland/Germany

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Our contribution - meaningful, considered and consistent

34 percent

Compared to other professions, women are under-represented in engineering. In 2015, they made up about 16% of the industry. In 2022, the proportion of women at HOLINGER was 34%, which is higher than at other engineering companies.

Ecological electricity mix

Our electricity mix is made up of around 80% hydropower, 11% renewable energies and 9% non-renewable energies (incl. nuclear energy).

Heat from waste water

In our project to expand the wastewater treatment plant in Collombey-Muraz (Switzerland), we are contributing to sustainable development. A heat pump extracts heat from the treated wastewater to heat the digestion tower and the buildings.