About Athmer & JCS​

About Athmer & JCS

Norseal’s parent company, Athmer oHG, from Arnsberg, Germany is part of the family owned Julius Cronenberg Sophienhammer (JCS) founded in 1711 and managed by Carl-Julius and Wilm-Hendric Cronenberg, both owners representing the family’s 10th generation in a continuous line.

As a company, Athmer’s mission is to constantly improve the design and technology of door seals. Planners, builders, manufacturers and end users have shown confidence both in the quality of its products and in Athmer’s comprehensive product rage. 

They offer a wide range of safety products for doors as well as finger protection, with trademarks such as Kältefeind®  and Schall-Ex® becoming synonymous with automatic drop seals. 

The JCS-Company Group owns several companies and stands for long time investments.

For further information visit athmer.de and jcs1711.de

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