Private company

IG Farben

Logo: Original: IG Farben Vector: EEIM, Public domain, via Wikimedia Commons3

Former German chemicals conglomerate

I. G. Farbenindustrie AG, commonly known as IG Farben, was a German chemical and pharmaceutical conglomerate. It was formed on 2 December 1925 from a merger of six chemical companies: Agfa, BASF, Bayer, Griesheim-Elektron, Hoechst, and Weiler-ter-Meer. It was seized by the Allies after World War II and split into its constituent companies; parts in East Germany were nationalized.2 It ceased to exist in 2012.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Dec 2, 1916Founded1
  • Industrychemical industry1
  • HeadquartersFrankfurt am Main1
  • Founded inFrankfurt1
  • Legal formAktiengesellschaft1
Goethe University Frankfurt Poelzig Building
Photo: CC BY-SA 3.0, via Wikimedia Commons5

I. G. Farbenindustrie AG, commonly known as IG Farben, was a German chemical and pharmaceutical conglomerate. It was formed on 2 December 1925 from a merger of six chemical companies: Agfa, BASF, Bayer, Griesheim-Elektron, Hoechst, and Weiler-ter-Meer. It was seized by the Allies after World War II and split into its constituent companies; parts in East Germany were nationalized.2

Corporate structure

IG Farben sits at the top of its group. 384 entities, 54 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • IG Farben Frankfurt am Main
    • ACNA Subsidiary · Cengio
    • Agfa Camerawerk Subsidiary · Munich
    • Agfa-Gevaert Subsidiary · Mortsel, Belgium
      • Agfa HealthCare Canada Subsidiary · Waterloo, Canada
      • Agfa-Gevaert (United States) Subsidiary · Goose Creek, United States
      • Information International, Inc. Subsidiary · Los Angeles
      • AGFA Subsidiary · Mortsel, Belgium
      • AGFA FINANCE Subsidiary · Mortsel, Belgium
      • AGFA FINCO Subsidiary · Mortsel, Belgium
      • AGFA HEALTHCARE Subsidiary · Mortsel, Belgium
      • Agfa-Gevaert (Belgium) Subsidiary · Belgium
      • Agfa-Gevaert (Canada) Subsidiary · Canada
    • American IG Subsidiary · New York City
      • Ansco Subsidiary · Binghamton
    • Apollo Subsidiary · Bratislava, Slovakia
    • BASF Subsidiary · Ludwigshafen am Rhein, Germany
      • BASF Praha, Czechia
      • BASF (Canada) Mississauga, Ontario, Canada
        • BASF AGRICULTURAL SOLUTIONS CANADA INC. Subsidiary · Ludwigshafen, Germany
        • BASF COATINGS INC. Subsidiary · Mississauga, Ontario, Canada
      • BASF (France) Paris, France
      • BASF Antwerpen N.V. Antwerpen, Belgium
      • BASF Polyurethanes Lemförde, Germany
      • BASF Schwarzheide Schwarzheide, Germany
      • BASF Schweiz AG Basel, Switzerland
      • Surventis Münster, Germany
      • BASF (China) Subsidiary · 上海, China
      • BASF (Norway) Subsidiary · Oslo, Norway
      • BASF (Switzerland) Subsidiary · Basel, Switzerland
      • Verenium Corporation Subsidiary · San Diego
      • Wintershall Subsidiary · Kassel, Germany
      • Basf Finance Europe N.V. Subsidiary · 100% · Arnhem, Netherlands
      • A.M. CRAIG LIMITED Subsidiary · Milton Keynes, United Kingdom
      • Alsachimie S.A.S. Subsidiary · Chalampé, France
      • B A S F SRL Subsidiary · Bucharest, Romania
      • ba si fu dian chi cai liao (shang hai) you xian gong si (巴斯夫电池材料(上海)有限公司) Subsidiary · Shanghai, China
      • BASF (Netherlands) Subsidiary
      • BASF (United Kingdom) Subsidiary · United Kingdom
      • BASF (United States) Subsidiary · Florham Park, United States
      • BASF (БАСФ) Subsidiary · Sofia, Bulgaria
      • BASF A/S Subsidiary · København V, Denmark
      • BASF AB Subsidiary · Göteborg, Sweden
      • BASF Agri Production SAS Subsidiary · Ecully Cedex, France
      • and 116 more
    • Bayer Subsidiary · Leverkusen, Germany
    • Behringwerke Subsidiary · Marburg
    • Buna Werke Subsidiary · Merseburg
    • Degesch Subsidiary · Laudenbach, Germany
    • Deutsche Länderbank Subsidiary · Berlin, Germany
    • DK Recycling und Roheisen GmbH Subsidiary · Duisburg, Germany
    • Donau Chemie Subsidiary · Wien, Austria
      • Donau Carbon GmbH Subsidiary · Frankfurt am Main, Germany
      • DONAUCHEM GmbH Subsidiary · Wien, Austria
        • DONAUCHEM s.r.o. Subsidiary · 67.5% · Nymburk, Czechia
    • Gasolin Subsidiary · Hanover
    • Interhandel Subsidiary
    • Leuna works Subsidiary · Leuna
    • Pulverfabrik Rottweil Subsidiary · Rottweil, Germany
    • Wagenmann & Seybel Subsidiary · Vienna, Austria
    • WASAG Subsidiary · Coswig, Germany
      • H.A. Meyer & Riemann Chemische Werke Subsidiary · Germany
    • WCM AG Subsidiary · Berlin, Germany
      • Salzgitter Klöckner-Werke Subsidiary · Salzgitter, Germany
        • HSP Hoesch Spundwand und Profil Gesellschaft mit beschränkter Haftung Subsidiary · Dortmund, Germany
        • Klöckner Eisen Subsidiary · Germany
        • Klöckner-Werke AG Eisen und Stahlwerk Kneuttingen Subsidiary · France
    • Württembergische Cattunmanufaktur Subsidiary · Heidenheim an der Brenz, Germany
    • Braunkohlenwerke Bruckdorf Subsidiary · Germany
    • Deutsche Grube Subsidiary · Germany
    • Guano Works Subsidiary · Germany
    • I.G. Bergwerke Subsidiary · Germany
    • and 1 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

The story

Background

At the beginning of the 20th century, the German chemical industry dominated the world market for synthetic dyes. Three major firms BASF, Bayer and Hoechst, produced several hundred different dyes. Five smaller firms, Agfa, Cassella, Kalle & Co., Chemische Fabrik Griesheim-Elektron and Chemische Fabrik vorm. Weiler-ter Meer, concentrated on high-quality specialty dyes. In 1913, these eight firms produced almost 90 percent of the world supply of dyestuffs and sold about 80 percent of their production abroad. The three major firms had also integrated upstream into the production of essential raw materials, and they began to expand into other areas of chemistry such as pharmaceuticals, photographic film, agricultural chemicals and electrochemicals. Contrary to other industries, the founders and their families had little influence on the top-level decision-making of the leading German chemical firms, which was in the hands of professional salaried managers. Because of this unique situation, the economic historian Alfred Chandler called the German dye companies "the world's first truly managerial industrial enterprises".

With the world market for synthetic dyes and other chemical products dominated by the German industry, German firms competed vigorously for market shares. Although cartels were attempted, they lasted at most for a few years. Others argued for the formation of a profit pool or Interessen-Gemeinschaft (abbr. IG, lit. "community of interest"). In contrast, the chairman of Bayer, Carl Duisberg, argued for a merger. During a trip to the United States in the spring of 1903, he had visited several of the large American trusts such as Standard Oil, U.S. Steel, International Paper and Alcoa. In 1904, after returning to Germany, he proposed a nationwide merger of the producers of dye and pharmaceuticals in a memorandum to Gustav von Brüning, the senior manager at Hoechst.

Hoechst and several pharmaceutical firms refused to join. Instead, Hoechst and Cassella made an alliance based on mutual equity stakes in 1904. This prompted Duisberg and Heinrich von Brunck, chairman of BASF, to accelerate their negotiations. In October 1904 an Interessen-Gemeinschaft between Bayer, BASF and Agfa was formed, also known as the Dreibund or little IG. Profits of the three firms were pooled, with BASF and Bayer getting 43 percent each and Agfa 14 percent of all profits. The two alliances were loosely connected with each other through an agreement between BASF and Hoechst to jointly exploit the patent on the Heumann-Pfleger indigo synthesis.

Within the Dreibund, Bayer and BASF concentrated on dye, while Agfa increasingly concentrated on photographic film. Although there was some cooperation between the technical staff in production and accounting, there was little cooperation between the firms in other areas. Neither were production or distribution facilities consolidated nor did the commercial staff cooperate. In 1908 Hoechst and Cassella acquired 88 percent of the shares of Chemische Fabrik Kalle. As Hoechst, Cassella and Kalle were connected by mutual equity shares and were located close to each other in the Frankfurt area, this allowed them to cooperate more successfully than the Dreibund, although they also did not rationalize or consolidate their production facilities.

Foundation

Following a contract signed by all concerned parties on November 21, 1925, IG Farben was founded on December 2, 1925, as a merger of six companies: BASF (27.4 percent of equity capital); Bayer (27.4 percent); Hoechst, including Cassella and Chemische Fabrik Kalle (27.4 percent); Agfa (9 percent); Chemische Fabrik Griesheim-Elektron (6.9 percent); and Chemische Fabrik vorm. Weiler Ter Meer (1.9 percent). The supervisory board members became widely known as, and were said to call themselves jokingly, the "Council of Gods" (Rat der Götter). The designation was used as the title of an East German film, The Council of the Gods (1950).

In 1926, IG Farben had a market capitalization of 1.4 billion ℛ︁ℳ︁ (equivalent to 6 billion 2021 euros) and a workforce of 100,000, of which 2.6 percent were university educated, 18.2 percent were salaried professionals and 79.2 percent were workers. BASF was the nominal survivor; all shares were exchanged for BASF shares. Similar mergers took place in other countries. In the United Kingdom Brunner Mond, Nobel Industries, United Alkali Company and British Dyestuffs merged to form Imperial Chemical Industries in September 1926. In France Établissements Poulenc Frères and Société Chimique des Usines du Rhône merged to form Rhône-Poulenc in 1928. The IG Farben Building, headquarters for the conglomerate in Frankfurt am Main, Germany, was completed in 1931. In 1938, the company had 218,090 employees.

IG Farben was controversial on both the far left and far right, partly for the same reasons, related to the size and international nature of the conglomerate and the Jewish background of several of its key leaders and major shareholders. Far-right newspapers of the 1920s and early 1930s, accused it of being an "international capitalist Jewish company". The liberal and business-friendly German People's Party was its most pronounced supporter. Not a single member of the management of IG Farben before 1933 supported the Nazi Party; four members, or a third, of the IG Farben supervisory board were themselves Jewish.

Throughout the 1930s, the company underwent a process of Aryanization, and the company ended up being the "largest single contribution" to the successful Nazi election campaign of 1933; there is also evidence of "secret contributions" to the party in 1931 and 1932.

Read the full text

By 1938 the Jews on the board had resigned and the remaining Jewish employees had been dismissed after Hermann Göring issued a decree, as part of the Nazis' Four Year Plan (announced in 1936), that the German government would make foreign exchange available to German firms to fund construction or purchases overseas only if certain conditions were met, which included making sure the company employed no Jews.

Products

IG Farben's products included synthetic dyes, nitrile rubber, polyurethane, prontosil, and chloroquine. The nerve agent Sarin was first discovered by IG Farben. The company is perhaps best known for its role in producing the poison gas Zyklon B. One product crucial to the operations of the Wehrmacht was synthetic fuel, made from lignite using the coal liquefaction process.

IG Farben scientists made fundamental contributions to all areas of chemistry. Otto Bayer discovered the polyaddition for the synthesis of polyurethane in 1937. Several IG Farben scientists were awarded a Nobel Prize. Carl Bosch and Friedrich Bergius were awarded the Nobel Prize in Chemistry in 1931 "in recognition of their contributions to the invention and development of chemical high pressure methods". Gerhard Domagk was awarded the Nobel Prize in Physiology or Medicine in 1939 "for the discovery of the antibacterial effects of prontosil".

From Wikipedia’s article on IG Farben, shared under CC BY-SA 4.0.4

Leadership

Who has led IG Farben, and when. Pick a name to see everywhere that person has worked.

Board members and other officers (11)

Subsidiaries and ownership

Subsidiaries

All 26 subsidiaries

From Wikidata.1

Acquisitions

  1. 1939Acquired Apollo1
  2. 1939Acquired Wagenmann & Seybel1
  3. 1926Acquired Gasolin1
  4. Dec 10, 1925Acquired Agfa Camerawerk1
  5. 1925Acquired Agfa-Gevaert1
  6. 1925Acquired Cassella1
  7. 1925Acquired Chemische Fabrik Kalle1
  8. 1925Hoechst became a subsidiary1
  9. Succeeded by Agfa-Gevaert1
  10. Succeeded by BASF1
  11. Succeeded by Bayer1
  12. Succeeded by Hoechst1

Timeline

  1. Oct 31, 2012Dissolved Dissolved1
  2. Dec 2, 1916Founded Founded in Frankfurt1

Sources

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

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