Igor Petrushevski was educated at the Moscow Conservatory and the Guildhall School of Music and Drama. During the last 25 years, his students were winners of international competitions including: Tchaikovsky, Paganini, Long-Thibaud, Tibor Varga, Rodolfo Lipizer, Indianapolis, Tokyo, Wieniawski, Cologne, Jascha Heifetz, Sion, Postacchini, Joseph Joachim, Britten, Canetti, Enescu, Valsesia and Khachaturian. His students have performed with Maxim Vengerov, Krzysztof Penderecki, Vladimir Jurowski, Kristjan Järvi, Shlomo Mintz, Mischa Maisky and many other famous artists.
He had numerous radio and television performances all over the world. Over the last 20 years he gave master classes and played in the major concert halls of Italy, France, Austria, UK, all of the former Yugoslavia, Spain (Reina Sofia School of Music), Russia (Moscow Conservatory), North and South America, China (Beijing and Shanghai conservatories) and Korea (Seoul National University).
Some of his current and former students are leading important orchestras in the USA, Russia, Germany, Austria and the UK and are playing in major orchestras such as the Wiener Philharmoniker, ORF, the Royal Philharmonic Orchestra, Covent Garden Orchestra etc. Many also have prominent solo international careers and are holding teaching positions in universities all over the world. Petrushevski is honorary professor at the Yerevan State Conservatory, at Ipolito Ivanovo and professor at the Richard Wagner Konservatorium – Vienna. He previously worked at the Trinity College of Music and the Royal Academy of Music in London. A documentary ﬁlm about his life and work has been broadcast in over 20 countries.
He was artistic director of the Strings In London International Music Festival and the Vienna Classic Strings Competition and Festival. He is currently artistic director of the Zell am See festival where he works with Maxim Vengerov and other reputed musicians.
During the last 25 years he worked in major festivals such as the Mozarteum Summer Academy, the Beethoven Easter Festival, Santander Festival, Enescu Festival, Northern Lights, Allegro Vivo, Malta International Music Festival with Maxim Vengerov and Salvatore Accardo.
He has been a jury member at international competitions including the George Enescu International Competition, Aram Khachaturian International Violin Competition, Tchaikovsky Competition for Young Musicians, Vienna Classic Strings Competition and Festival, Osaka Competition.