While Karl Hagenauer was the principal designer of everyday objects (and some sculptures), his younger brother Franz specialized in sculpture. Franz Hagenauer also studied from an early age with Franz Cižek at Vienna's School of Applied Arts, and joined the family business at age twenty. His interest and talent lay in sculpture with sheet metals rather than cast figures, and later in his career he was head of metalwork and metal design classes at the Academy of Applied Arts.
Franz took over the running of the company after Karl died in 1956.
