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Stainless steel our passion & competence

Stainless steel our passion & competence


From 2000 to 2023, Wilhelm Modersohn has steered the fortunes of the MODERSOHN company and is responsible both as a materials specialist and as a member of the board of the information center Stainless steel (ISER, Düsseldorf).

In 2006, Mr. Modersohn played a decisive role in the market launch of the 1st Lean Duplex steel in the construction industry. After numerous tests at the Federal Institute for Materials Research (BAM, Berlin) and the University of Karlsruhe, he succeeded in obtaining a building authority approval Z-30.3-19 for the material 1.4362. Since then, the company's management has registered several new developments as patents and supported company-relevant research projects.

In 2014 Dipl.-Ing. (FH) Jürgen Matzelle SFI/IWE becomes the second managing director of the company. As a construction and welding engineer, he offers concentrated expertise in the field of fastening technology and system products for ventilated curtain walls.

In addition to the constant product development for Stainless steel support anchors, Mr. Matzelle is responsible for the supervision and certification of all building products at MODERSOHN.

Sale of the Modersohn business to Leviat, effective 1 February 2023

Leviat, a CRH company, is a global leader in connecting, fixing, lifting and Anchoring technology for the construction industry, supplying a variety of market sectors from residential to infrastructure. With engineering and manufacturing capabilities on four continents, Leviat employs over 3,000 people at 60 locations in Europe, Asia-Pacific and North America.

This global business supplies engineering design services and a suite of trusted product brands, including Ancon, Halfen, Plaka and now Modersohn. For more information on Leviat, please visit

Skills of the MODERSOHN company

Our passion & competence

"Stainless steel is our world!" This motto is implemented by the MODERSOHN company with full commitment. Thus the Wilhelm Modersohn GmbH & Co. KG also contributes to the development and creation of important standards in the construction industry and products made of Stainless steel with its own representatives in the association and standardisation work of various committees.

Research and development are continuously taking place at our company

Together with the Federal Institute for Materials Research (BAM), Berlin, and other testing institutes, we develop more cost-effective and efficient façade and heavy-duty fixings for our customers.


Testing institutions and certification organisations

Universität Stuttgart
Ruhr-Universität Bochum
Universität Duisburg-Essen
Bundesanstalt für Materialforschung und -Prüfung
Deutsches Institut für Bauforschung
Frauenhofer IBP Institut
GSI-SLV Gesellschaft für Schweißtechnik - Schweißtechnische Lehr- und Versuchsanstalt Hannover
IEA GmbH & Co. KG anerkannte PÜZ-Prüfstelle nach LBO
MPA Hannover Überwachungs und Zertifizierungsgesellschaft