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Preiss-Daimler

Preiss-Daimler (P-D Group) is a German industrial group headquartered in Wilsdruff, Saxony, focused on glass fibre, refractories and environmental services.

Last updated September 27, 2026

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Overview

Preiss-Daimler, commonly known as the P-D Group (P-D Gruppe), is a German industrial group made up of companies from several different sectors. It is described as the largest independent corporate group in the German state of Saxony. The group's headquarters are located in Wilsdruff in Saxony. The group traces its origins to Heinz-Jürgen Preiss-Daimler (1939–2020), who from 1976 gained experience on large industrial construction sites in East Germany (such as the Buna-Werke, the Eisenhüttenkombinat Ost and Robotron) while serving as managing director of a civil engineering firm in Minden, Westphalia. From 1990 he acquired a total of 17 East German enterprises from the Treuhandanstalt, some of which became core elements of the P-D Group. The group emerged from the synergy effects of cross-company cooperation. Its main industrial branches are the manufacture of fibreglass and glass silk, used among other things for automotive and aircraft production, as well as the manufacture of refractory materials. In addition, the industrial group operates companies in the fields of environmental technology, landfill and construction. Its corporate headquarters are in Wilsdruff, Saxony. In 2001 the Chemiepark Bitterfeld-Wolfen company came to the group, and in 2003 it acquired the majority of shares in Interglas-Technologies AG. According to the Industrieverein Sachsen, in 2003 the P-D Group employed 7,000 people worldwide and generated revenue of around 730 million euros. In 2013 ChemiePark Bitterfeld Wolfen GmbH was sold to Gelsenwasser AG, and in 2015 the subsidiary Stahlbau Calbe went into insolvency. In 2017 Interglas-Technologies was acquired by Porcher Industries. The group's business areas include glass fibre processing at Oschatz, Valmiera (Latvia), Dublin (Georgia, USA) and Sherborne (UK); chamotte and refractory products at Puschwitz and Bochum; service and environmental protection at Bitterfeld-Wolfen and Wilsdruff; an industrial waste landfill in Wetro; and clay mining in Guttau. Selected companies of the P-D Group include P-D Management Industries-Technologies GmbH, P-D Glasseiden GmbH Oschatz, P-D Industriegesellschaft mbH, Feuerfestwerke Wetro, P-D refractories GmbH, Dr. C. Otto and P-D Cable-Systems GmbH. Former group companies include Glasfabrik Döhlen (also known as Glashütte Freital), Dyko (which made parts for glass melting tanks and whose Preiss-Daimler plant in Düsseldorf-Heerdt was closed in 2013) and Glasfaser Brattendorf.

History

The P-D Group is a German corporate group composed of companies from various sectors. It is described as the largest independent corporate group in Saxony. Its origins lie with Heinz-Jürgen Preiss-Daimler (1939–2020), who from 1976, as managing director of a civil engineering firm in Minden, Westphalia, gained experience on large industrial construction sites in East Germany, including the Buna-Werke, the Eisenhüttenkombinat Ost and Robotron. From 1990 he acquired a total of 17 East German enterprises from the Treuhandanstalt, some of which became core elements of the P-D Group. The group arose from the synergy effects of cross-company cooperation. Its main industrial branches are the manufacture of fibreglass and glass silk, used among other things for automotive and aircraft production, and the manufacture of refractory materials. The industrial group also maintains companies in environmental technology, landfill and construction. The corporate headquarters is in Wilsdruff, Saxony. In 2001 the Chemiepark Bitterfeld-Wolfen company came to the group, and in 2003 it acquired the majority of shares in Interglas-Technologies AG. According to the Industrieverein Sachsen, in 2003 the P-D Group employed 7,000 people worldwide and generated revenue of around 730 million euros. In 2013 ChemiePark Bitterfeld Wolfen GmbH was sold to Gelsenwasser AG, and in 2015 the subsidiary Stahlbau Calbe went into insolvency. In 2017 Interglas-Technologies was acquired by Porcher Industries. The group's business areas include glass fibre processing at Oschatz, Valmiera (Latvia), Dublin (Georgia, USA) and Sherborne (UK); chamotte and refractory products at Puschwitz and Bochum; service and environmental protection at Bitterfeld-Wolfen and Wilsdruff; an industrial waste landfill in Wetro; and clay mining in Guttau. Selected companies of the P-D Group include P-D Management Industries-Technologies GmbH, P-D Glasseiden GmbH Oschatz, P-D Industriegesellschaft mbH, Feuerfestwerke Wetro, P-D refractories GmbH, Dr. C. Otto and P-D Cable-Systems GmbH. Former group companies include Glasfabrik Döhlen (also known as Glashütte Freital), Dyko (which made parts for glass melting tanks and whose Preiss-Daimler plant in Düsseldorf-Heerdt was closed in 2013) and Glasfaser Brattendorf.

  • 2017

    Interglas-Technologies is acquired by Porcher Industries.

  • 2015

    Subsidiary Stahlbau Calbe goes into insolvency.

  • 2013

    ChemiePark Bitterfeld Wolfen GmbH is sold to Gelsenwasser AG; the Dyko plant in Düsseldorf-Heerdt is closed.

  • 2003

    The group acquires the majority of shares in Interglas-Technologies AG; employs 7,000 people worldwide with revenue of around 730 million euros.

  • 2001

    Chemiepark Bitterfeld-Wolfen joins the group.

  • 1990

    Preiss-Daimler begins acquiring 17 East German enterprises from the Treuhandanstalt.

  • 1976

    Heinz-Jürgen Preiss-Daimler begins gaining experience on large industrial construction sites in East Germany.

Products and positioning

Largest independent corporate group in Saxony, active in glass fibre, refractories and environmental technology.

  • Glass fibre

  • Glass silk

  • Refractory materials

  • Chamotte

  • Cable systems

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