Our history

Guldager A/S has been working with water for almost a century. We are one of Europe's oldest water treatment companies, but that doesn't mean we rest on our laurels. A hundred years ago we were at the forefront of technological development - and we still are. Every time we learn something new, it brings new opportunities for new products and solutions, and that's the way it's always been at Guldager.

Our history began in 1923, when Alfred Guldager invented electrolysis as a method to protect water pipes from corrosion. It is the method that is now standard all over the world. Over the years, we have expanded our business considerably. In addition to corrosion protection of water installations, today we develop solutions for desalination, softening, bacterial protection and much more.

We continuously develop our technologies, combining and adapting them to achieve the very best operational benefits - for the benefit of our customers. We strive every day to be a reliable and competent advisor, in combination with a strong service organization, we ensure that our customers' Guldager plants always work optimally.

See also our approach to sustainability.

See profile brochure

The milestones in Guldager's history are:

Our mission is;

To be the partner and supplier of choice for professional customers in service-based, intelligent water treatment and protection of water-bearing systems - respecting the environment and benefiting customers' economies and end users.