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1930 – 1938
State Real High School Bratislava, since childhood years member of choir Tatran
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since 1938
study of piano (Prof. B. Jelínek) and at the same time law study (doctoral study graduated in 1943)
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1955 – 1958
Academy of Performing Arts Bratislava (choir conducting – Ján Strelec, Juraj Haluzický)
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1946 – 1951
conductor of choir Tatran
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1951 – 1983
artistic activity in Lúčnica ensemble (conductor and artistic director of choir, in 1956 – 1978 also artistic director of whole ensemble Lúčnica)
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1982 – 1985
main choirmaster of Slovak Philharmonic Choir
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since 1985
main choirmaster of SĽUK (Slovak Folk Art Collective)
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1972 – 1974
and 1978 – 1982 head secretary of Association of Slovak Composers
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1976 – 1978
external pedagogue of choral singing at Conservatory in Bratislava
In addition to Lúčnica and Slovak Philharmonic Choir, Štefan Klimo cooperated as an artist with many other choirs such as Folk Choir of Slovak Teachers in Žilina, Bratislava Teachers Choir at Pedagogical Institute of Bratislava City, Choir Technik and others.
Also significant are his methodological, publication and organizational activities, and his leadership and advisory of vocal choirs in Czechoslovakia and abroad. He regularly attended domestic and foreign competitions of choirs as a member of juries.