In April 1931, Porsche returned to Stuttgart and founded his consulting firm Dr. Ing. h.c. F. Porsche GmbH, Konstruktionen und Beratungen für Motoren und Fahrzeugbau (designs and consulting services for motors and vehicles). With financial backing from his son-in-law the Austrian attorney Anton Piëch and Adolf Rosenberger, Porsche successfully recruited several former co-workers he had befriended at his former places of employment, including Karl Rabe, Erwin Komenda, Franz Xaver Reimspiess, and his son, Ferry Porsche.
In April 1931, Porsche returned to Stuttgart and founded his consulting firm Dr. Ing. h.c. F. Porsche GmbH, Konstruktionen und Beratungen für Motoren und Fahrzeugbau (designs and consulting services for motors and vehicles). With financial backing from his son-in-law the Austrian attorney Anton Piëch and Adolf Rosenberger Porsche successfully recruited several former co-workers he had befriended at his former places of employment, including Karl Rabe, Erwin Komenda, Franz Xaver Reimspiess, and his son, Ferry Porsche.