No. Chief Took office Left office Time in office 1 Diels, RudolfRudolf Diels (1900–1957) 26 April 1933 20 April 1934 11 months 2 Heydrich, ReinhardReinhard Heydrich (1904–1942) 22 April 1934 27 September 1939 5 years, 5 months 3 Müller, HeinrichHeinrich Müller (1900–1945) 27 September 1939 May 1945 † 5 years, 7 months