Siepmann

Siepmann Industries
Native name
Siepmann-Werke GmbH & Co KG
FormerlySiepmann-Werke A.-G.
Company typePrivate
IndustryConglomerate, steel manufacturing
FoundedFebruary 2, 1891 (1891-02-02) in Warstein, Germany
FounderLouis Peters
Headquarters,
Area served
Worldwide
Key people
Korinna Schwittay
(CEO)
Nicolai Siepmann
(Board Member)
Dr. Gerd Jaeger
(advisor)
Matthias Kleiner
(advisor)
Revenue US$105 million (2023)
OwnerHeirs of Hugo Siepmann (75.25%)
Heirs of Emil Siepmann (24.67%)
Number of employees
461(2022)
ParentSiepmann Industries
Websitewww.siepmann.de

Siepmann Industries (/ˈsiːpmən/; SEEP-muhn; colloquially referred to as Siepmann) is a German industrial concern headquartered in Warstein, Germany. Founded in 1891, Siepmann is primarily known for being active in the coal, steel, ammunition, armaments industry as well as important supplier to the automotive, maritime and energy industries.

The concern is primarily made up by two arms Siepmann-Werke GmbH & Co KG (drop steel foundry) and PERSTA-Stahlarmaturen GmbH & Co KG (valves) and historically belonged among the most important employers of the region, at peak employing over 3,000 employees, and important supplier to Germany during World War I and World War II, such as for curb chains and tanks. Siepmann was the second largest drop steel foundry after the Krupp concern.