The Deutsche Gesellschaft für Schädlingsbekämpfung mbH (transl. German Corporation for Pest Control), oft shortened to Degesch, was a German chemical corporation which manufactured pesticides. Degesch held the patent on the infamous pesticide Zyklon, a variant of which was used to execute people in the gas chambers of German extermination camps during the Holocaust. Through the firms Tesch & Stabenow GmbH (Testa) and Heerdt-Linger (Heli), Degesch sold the poisonous gas Zyklon B to the German Army and the Schutzstaffel (SS).
Degesch was founded in 1919 as a subsidiary of Degussa.[1] Its first director was Nobel laureate Fritz Haber. In 1936, Degussa and IG Farben each held 42.5% of the shares, while Th. Goldschmidt AG held the remaining 15%. During the years 1938 through 1943, Degesch was extremely profitable. For most of these years, IG Farben received dividends amounting to twice the value of their shares.[2] After the Second World War Degesch continued production. In 1986, the company was sold to Detia Freyberg GmbH; the current name is Detia-Degesch GmbH.