Deutsch: Georg Duffner (* 18. Mai 1954 in Freiburg im Breisgau) ist ein deutscher Unternehmer und Unternehmensberater. Er war Geschäftsführer der Witzenmann-Gruppe (1990–1994) und von Vinci Deutschland (1995–2001) sowie Vorstandsvorsitzender der Röchling Gruppe (2001–2016). Politisch aktiv war er in der 68er-Bewegung und ist seit 2011 Mitglied der Grünen.
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