Company history

Porosit-Betonwerke GmbH

1920
The company was founded in 1920 by Theodor Horn as a cement factory in Seifendorf, which was later incorporated into the district town of Sorau.
1920
1936
the first concrete filter pipes were < wpml_linebreak > developed, patented and manufactured for mining (groundwater lowering).
1936
1946
After the war in 1946, the company Theodor Paul Horn KG Betonwerke was rebuilt in Cottbus. But just ten years later, this company also had to be closed down. (June 17, 1953 failed GDR uprising)
1946
1956
Relocation to the Federal Republic of Germany and foundation of Theodor Paul Horn KG in Felsberg.
1956
1959
The company was transformed into a sales company of the newly founded production plant of Porosit-Betonwerke GmbH in Felsberg.
1959