Described by Isaac Stern as “..one of the most outstanding Israeli violinists” , Sergey Ostrovsky,who was born in 1975 in Russia, in a family of musicians, began playing violin at the age of 6, inspired by the great talent and extraordinary musicianship of his Father ,Valery Ostrovsky, concert pianist and professor, who's pedagogical touch and  knowledge, assisted  him through the years of his studies and the beginning of his professional career. Sergey has built an active and successful career as a First Violinist of the Aviv Quartet , as Soloist, Violin Professor of Haute Ecole de Musique de Geneve (Neuchatel Branch)  and a First concertmaster of leading orchestras in Europe , such as Orchestre de la Suisse Romande , Orchestre de la Palau des les Arts de Comunidad  Valenciana in Spain, and guesting in London Philharmonic, BBC Philharmonic, Basel Symphoniker, Luzern Symphoniker and Orchestre Chambre de Geneve. 

As a First violinist and a founder in 1996 of the Aviv String Quartet, Sergey won several top prizes at the International Competitions, such as Grand Prix at 3rd Melbourne Chamber Music Competition, Bordeaux String Quartet Competition, Prague Spring Competition, “Schubert and Modernity” Competition in Graz, Austria.

His solo appearances including Orchestre de la Suisse Romande , Israel Philharmonic Orchestra, Orchestre de la Communidad Valenciana, Cape town Philharmonic, Johannesburg Philharmonic , Israel Chamber Orchestra, Brooklyn Philharmonic,  Jerusalem Symphony, and Russian Philharmonic Orchestra, and many others, with conductors such as , Zubin Mehta, Yoel Levi, Hugh Wolff, Bernard Guller, Uriel Segal, Maxim Vengerov  and others.

With the Aviv Quartet, Sergey appeared in every continent around the world, Carnegie Hall and Lincoln Center in New York, Kennedy Center and Library of Congress in Washington, Sydney Opera House, Wigmore Hall and Royal Festival Hall in London, Auditorium de Louvre and Theatre du Chatelet in Paris, Wiener Konzerthous, Cologne Philharmonie,  concert tours in South Africa, Australia, Canada, China, United States, Brazil, Poland, Croatia, Hungary,Austria and many other countries, Participation in Festivals such as Verbier, Ex-en Provence, Storioni, Festival of Davos, Festival of Quartets in Luberon, Folles Journees de Nantes, several recordings on label Naxos (F.Schubert, F.A.Hoffmeister, Erwin Schulhoff, Erno Dohnanyi) and Dalia Classics (Shostakovich) ,  during 25 years of a successful career , made the group known as one of the top class string quartets on a stage of chamber music around the globe.

Sergey recorded for EMI Classics Mozart Concertone for 2 violins, together with Maxim Vengerov and Verbier Festival Chamber Orchestra, and in 2010 sergey recorded for Naxos, an album, featuring less known Russian concertos, by Anton Arensky, Jules Conus, and a World  premiere recording of a Concertino op .42 by Mieczyslaw Weinberg. 

Since 2013 Sergey is very much involved in Conducting, his appearances include Armenian Chamber Orchestra, Estonian Sinfonietta, North Baltic Chamber orchestra, Lviv Soloists, Avetis Festival Orchestra, Neuchatel Soloistes and Soloists of Nizhny Novgorod . 

His Violin Mentors include David Lapidus, Irina Svetlova, Alexander Kerr , Isaac Stern , Chamber music- Alban Berg Quartet, Amadeus Quartet, and Quatuor Ysaye, and for conducting- Georg Christophe Sandmann.