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Private company

Byk Gulden

Byk Gulden is a Historical pharmaceutical company based in Constance, founded in 1873.1 It is part of Accumulatoren-Fabrik AFA.1

Die Byk Gulden Lomberg Chemische Fabrik GmbH, kurz BYK ist ein deutsches Pharmaunternehmen und ist eine 100-prozentige Tochtergesellschaft der Altana AG mit Sitz in Wesel.2 From the German Wikipedia, CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1873Founded1
  • Industrymanufacture of basic pharmaceutical products and pharmaceutical preparations, manufacture of rubber and plastic products, pharmaceutical industry1
  • HeadquartersConstance, Germany1

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Corporate structure

Byk Gulden is part of a group headed by Accumulatoren-Fabrik AFA. 5 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

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.

Subsidiaries and ownership

Parent company

From Wikidata.1

Acquisitions

  1. Succeeded by Altana1

Timeline

  1. 1873Founded Founded1

Sources

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

  1. 1
  2. 2