In 1925 and 1926 Augustinčić held his first exhibitions in Paris, before returning to Zagreb and exhibiting in Zagreb in 1926 and then again in 1927 in Lwów and Zagreb. In 1929 he was one of the founding members of the Earth Group (Croatian: Grupa Zemlja) arts collective which brought together prominent left-oriented sculptors, painters and architects, such as Drago Ibler, Krsto Hegedušić, Ivan Tabaković, Ivan Generalić, and many others. Augustinčić took part in several exhibitions organised by the group between 1929 and 1933, when he left the group, two years before it was banned by the authorities in 1935.