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Kalundborg Symbiosis

Kalundborg Symbiosis

About Kalundborg Symbiosis

Kalundborg Symbiosis is a partnership between sixteen public and private companies in Kalundborg. The main principle is that a waste stream in one company becomes a resource in another, benefiting both the environment and the economy.


Founded: 1961

Employees: 0-10

HQ: Kalundborg, Denmark

Organisation type: Organisation


Bio-based circular solutions




Carbon capture, storage and utilisation


In Kalundborg Symbiosis, the city’s large industrial companies work together across sectors to share excess energy, water, and materials, so less goes to waste.

As public and private companies are physically connected, one company’s surplus of resources adds value to another. Today, more than 20 different streams of excess resources flow between the companies, creating a symbiosis of resource exchange, adding more resilience and profit to the partners.

The Symbiosis model also creates another surplus— the trust and power of innovation within the community. It benefits the people such as employees, students, and researchers and the climate. We are working together to reduce thousands of tons of CO2 emissions each year. Nor will we hold back in calling Kalundborg Symbiosis the solution of the future. Sustainability and profit go hand in hand – something we want to be the next normal.

We are proud that our model is already known and inspires people worldwide, but we would like to spread it even further. Nothing is more evolving than new partners eager to experiment, innovate, and sharing with us.

Learn more about Kalundborg Symbiosis here

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