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Right from the outset since the company was founded, our core expertise has not only been efficient products but also in-depth know-how and experience, particularly in our service-oriented corporate culture. In addition to two locations in Wermelskirchen and Krefeld as well as an office in Vienna/Austria, we are able to cooperate with a global network of partners, in order to provide our clients the best possible support locally. The quality of our products is a warranty for reliable use in the production process. This is not least thanks to our quality management system. Trailblazing new developments are produced through intensive cooperation from research, industrial experience and practical application.


In 1997 Christian L. Mühlenberg and Uwe Thomas, formerly colleagues at a multinational corporation of the special chemicals industry, decided to establish a company in a similar market environment. The company called "DEFOTEC Entschäumer Vertriebs-GmbH" was initially primarily focused on chemical additives in the food industry, particularly defoaming and flocculation agents.

Overview of production. You will find an overview of our products here.


Now, after 20 years of company history, we can look back on a successful time. We have not only expanded our product and service portfolio to include the industries sugar, paper, construction, cable and mining, but we were also able to generate continuous growth with increasing sales figures.

In March of 2019, the German chemical company LEVACO, with headquarters in Leverkusen, purchased 74.9% of the DEFOTEC shares. Therefore, the majority of the shares of both companies is now owned by Diersch & Schröder GmbH & Co. KG in Bremen.

By the integration into the LEVACO structures and the resulting close cooperation, we expect - through research and development - an optimisation of our product portfolio with innovative new products of the highest quality. At the same time, we want to expand our distribution structure and therefore secure a sustainable growth of the company.

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