Atanas Kostov
1877 - 1878

Georgi Kostov
1878 - 1878

Petar Hikov
1880 - 1881

Haralampi Karaivanov
1883 - 1885 ; 1888-1890

Simeon Haydukov
1885 - 1888 ; 1890 - 92

Hristo Danailov
1898 -1899 ; 1901 - 1903

Ivan Yordanov
1899 - 1900 ; 1901 - 1901

Todor Shtirkov
1900 - 1900

Todor Tsvetkov
1901 - 1901

Todor Tabakov
1903 - 1908

Georgi Uzunov
1912 - 1913

Dimitar Dobrev
1913 - 1918

Ivan Kartandzhiev
1919 - 1921

Georgi Chervenkov
1921 - 1922

Ivan Zonkov
1922 - 1923

Ivan Mindilikov
1923 - 1931

eng.Nikola Marinov
1934 - 1937

Kosta Stefanov
1937 - 1938

Stoyan Valchev
1937 - 1938 ; 1938-1944

Vasil Topalski
1946 - 1948

Dr Rusi Rusev
1948 - 1949

Boris Bozhinov
1949 - 1950

Georgi Uzunov
1951 - 1953

Todor Aleksiev
1956 - 1959

Radoy Tsochev
1959 - 1963

Lyubomir Nachev
1963 - 1971

Andrey Romanov
1971 - 1979

Trifon Trifonov
1979 - 1986

Krum Radev
1986 - 1987

Petko Tsolov
1987 - 1990

Georgi Angelov
1990 - 1991

Dr Aleksandar Aleksandrov
1991 - 1995

Rumen Petkov
1995 - 1999

Nayden Zelenogorski
1999 - 2011

Prof. dr Dimitar Stoykovski
2011 - 2015

Georg Spartanski
2015 - 2023