|   Prof. A. Peterlin, Ph. D.
 
 In just a few decades the Jožef Stefan Institute has expanded from its beginnings as the Physical Institute (led by prof. Anton Peterlin) as part of the Slovene Academy of Sciences and Arts, to being the leading scientific research establishment in Slovenia.
 
 
 |  Director FORMER DIRECTORS
 
 
 
Prof. Anton Peterlin, Ph. D., founder director 1949-1955 Karol Kajfež, 1955-1958
 Lucijan Šinkovec, 1959-1963
 Prof. Milan Osredkar, Ph. D., 1963-1975
 Prof. Boris Frlec, Ph. D., 1975-1984
 Prof. Tomaž Kalin, Ph. D., 1984-1992
 Prof. Danilo Zavrtanik, Ph. D., 1992-1996
 Prof. Vito Turk, Ph. D., 1996-2005
 Prof. Jadran Lenarčič, Ph. D., 2005-2020 -  Website
 Prof. Boštjan Zalar, Ph. D., 2020-2025
 
 
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