Major-General
* 1911
† March 1965
(NKVD)
(Леонид Сергеевич Буянов)
| 1939-03-09 | Major of State Security |
| 1943-02-14 | Colonel of State Security |
| 1945-02-16 | Commissar of State Security |
| 1945-07-09 | Major-General |
| 1939-02-16 | – | 1940-10-07 | Deputy Head of Main Transportation Directorate, People's Commissariat of Internal Affairs NKVD |
| 1939-02-16 | – | 1940-10-07 | Chief of 1st Section, Main Transportation Directorate, People's Commissariat of Internal Affairs NKVD |
| 1940-10-07 | – | 1944-03-24 | Deputy Head of Main Railway Construction Camps Directorate, People's Commissariat of Internal Affairs MVD |
| 1944-03-24 | – | 1946-03-XX | People's Commissar of Internal Affairs Komi ASSR |
| 1946-03-XX | – | 1946-09-21 | Minister of Internal Affairs Komi ASSR |
| 1946-04-27 | – | 1947-06-05 | Head of Facility (Laboratory) "B", 9th Directorate, Ministry of Internal Affairs MVD |
| 1947-06-05 | – | 1949-07-09 | Deputy Head of Main Railway Construction Camps Directorate, Ministry of Internal Affairs MVD |
| 1949-07-09 | – | 1951-10-15 | First Deputy Head of Main Railway Construction Camps Directorate, Ministry of Internal Affairs MVD |
| 1951-01-18 | – | 1953-04-01 | Head of No. 505 Mining & Concentration Plant |
| 1955-03-28 | – | 1956-02-18 | Head of 150th Military Road Construction, Glavspetsstroya, Ministry of Internal Affairs MVD |
| 1956-02-18 | – | 1958-01-08 | Head of 150th Military Construction, Glavspetsstroya, Ministry of Internal Affairs MVD |
| 1958-01-08 | Retired |