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Private company

Otto Eberhardt Cartridge Factory

Austrian company

Otto Eberhardt Patronenfabrik (English: "Otto Eberhardt Cartridge Factory") was a munitions company established in 1860. The company's Hirtenberger Patronen, Zündhütchen und Metallwarenfabrik (English: "cartridge, primer and metalware fabrication in Hirtenberg") near Wiener Neustadt (proofmark "am") used forced labor during World War II from a sub-camp of the Mauthausen-Gusen concentration camp and produced ammunition including 9×19mm Parabellum (pistol and submachine gun) and 8 mm Mauser (rifle) cartridges.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1860Founded1
  • Industryautomotive industry, manufacture of weapons and ammunition, metal industry, weapons industry1
  • HeadquartersHirtenberg1
  • Websitewww.hirtenberger.at
  • Legal formAktiengesellschaft1

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Otto Eberhardt Patronenfabrik (English: "Otto Eberhardt Cartridge Factory") was a munitions company established in 1860. The company's Hirtenberger Patronen, Zündhütchen und Metallwarenfabrik (English: "cartridge, primer and metalware fabrication in Hirtenberg") near Wiener Neustadt (proofmark "am") used forced labor during World War II from a sub-camp of the Mauthausen-Gusen concentration camp and produced ammunition including 9×19mm Parabellum (pistol and submachine gun) and 8 mm Mauser (rifle) cartridges. The company also had a factory in Ronsdorf near Wuppertal (proofmark "ap") which produced rifles. Additional Gustloff facilities were in Meiningen and Weimar.2

Corporate structure

Otto Eberhardt Cartridge Factory sits at the top of its group. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Otto Eberhardt Cartridge Factory Hirtenberg
    • Hirtenberger Defence Systems Subsidiary

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

Products and brands

  • ammunition

Listed on Wikidata.1

Otto Eberhardt Patronenfabrik also purchased the assets of the Hopfner aircraft company in 1935. They continued production of both de Havilland- and Siemens-powered aircraft under the Hirtenberg brand. They produced the Hirtenberg HS.9 under their brand.

From Wikipedia’s article on Otto Eberhardt Patronenfabrik, shared under CC BY-SA 4.0.3

Subsidiaries and ownership

Owners

  • Ludwig Mandl since 1887
  • Helmut Schuster since 1996

Subsidiaries

  • Hirtenberger Defence Systems

From Wikidata.1

Timeline

  1. 1996Acquired Acquired by Helmut Schuster1
  2. 1986Renamed Name changed to Hirtenberger AG1
  3. 1958Renamed Name changed to Hirtenberger Patronen-, Zündhütchen- und Metallwarenfabrik AG1
  4. 1957Renamed Name changed to Hirtenberger Patronen- und Rohrwerke A.G.1
  5. Jun 1939Renamed Name changed to Gustloffwerke Hirtenberg1
  6. Apr 1939Renamed Name changed to Otto Eberhardt Patronenfabrik1
  7. 1897Renamed Name changed to Hirtenberger Patronen-, Zündhütchen- und Metallwaarenfabrik Aktiengesellschaft1
  8. 1887Renamed Name changed to Hirtenberger Patronen-, Zündhütchen- und Metallwaarenfabrik Keller & Compagnie1
  9. 1887Acquired Acquired by Ludwig Mandl1
  10. 1860Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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