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We analyze your boiler water
On site, customer-specific & solution-oriented
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Natural boiler water treatment with Demkor
The ecolution for steam boilers
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Digitize your monitoring
Record your entire system digitally
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Our strong partner in Canada and the USA
TGWT aka The Tannin Guys

Your specialist for efficient water additives

On the road for you worldwide

For more than 40 years, we have been developing, producing and distributing our own chemical-technical products for the food and beverage industry, the service and processing industry and for energy suppliers.

Always true to the motto: as much nature as possible, as little chemistry as necessary.

KORN GmbH is an owner-managed, medium-sized family business from Hamburg. Company founder Erwin Korn laid the foundations in 1932 with his chemical trading business and focused on organic and particularly environmentally friendly raw materials at an early stage.

We are still following this tradition today.

KORN in Canada and the USA:

The long-standing partnership with the Canadian company TGWT Clean Technologies Inc. is based on mutual trust and common goals.

Our products

Your career at KORN GmbH

We look forward to meeting you!

As an owner-managed Hamburg-based company, we place a high priority to a personal, cooperative and trusting relationship with our employees. After all, they are the ones who have made our company’s success possible for more than 80 years. Whether in research, production or administration – KORN GmbH offers future-proof jobs as well as attractive training and promotion opportunities for:
  • chemical-technical professions
  • commercial professions
  • industrial professions
Field service Hamburg
Service technican
Current topics

Reducing energy costs

Find out how you can reduce your energy costs with the right additive.

With DEMKOR, you not only rely on an ecological additive in your boiler water, but also optimize the operation of your boiler system.

As a result, you will noticeably reduce water loss and also need less fuel for heating.

Maximum efficiency and top quality!

We are committed to conserving the valuable resource of water.

We offer ecologically compatible top products made from renewable and organic raw materials with maximum effectiveness and the best price-performance ratio.

Quality – made in Hamburg, Germany. Hanseatic. Reliable. Fair.