the art of engineering

Water is our element

We develop intelligent solutions for water cycle challenges. To do this, we use our engineering experience to harness nature’s creative power and the power of science and technology. We set new standards and create added value for people and the environment – today for tomorrow.

STORIES

HOLINGER celebrates its 90th anniversary

Our history is characterised by experience, innovation, know-how and pioneering spirit.

 

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Stories

Background insights

Interesting stories about HOLINGER, our services and the people behind them.

Committed to the future of settlements
People

Committed to the future of settlements

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Variety: between office and construction site
People

Variety: between office and construction site

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The future in our heads
People

The future in our heads

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Still convinced after decades
People

Still convinced after decades

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Competences

Top-class competences - the basis for success

Wastewater

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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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All competencies

Using heat from wastewater for district heating, Basel WWTP

Using heat from wastewater for district heating, Basel WWTP

Basel, Switzerland

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Advising water supply companies

Advising water supply companies

Syrdarya Province, Uzbekistan

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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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Recycling water for service use

Recycling water for service use

Schweinfurt, Germany

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Sustainability

Our contribution - meaningful, considered and consistent

Learn more about our commitment to a better tomorrow and the day after.

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.

Sustainability