Igor Rotenberg Igor Rotenberg Igor Rotenberg, () is a Russian billionaire businessman and the oldest son and heir to Arkady Rotenberg, Russian billionaire businessman and co-owner with brother Boris Rotenberg, of the SGM (Stroygazmontazh) group. The Rotenberg's are closely associated with Vladimir Putin. In October 2018, Igor Rotenberg's wealth is estimated to be $1.1 billion. Igor Rotenberg has been under United States sanctions since 6 April 2018. Igor is the majority shareholder in Gazprom Drilling. Igor Rotenberg was born on 9 September 1974 in Leningrad to Arkady Rotenberg. In 2002, he graduated from the Higher School of Privatization and Entrepreneurship () in
Abie Rotenberg and Shlomo Carlebach as strong influences. While his folk-inspired sound and inspirational lyrics are strongly reminiscent of Carlebach, Rotenberg's soft and sometimes melancholic voice, however, contrast with Carlebach's ecstatic style. Rotenberg has collaborated with other Jewish musicians including Mordechai ben David, Avraham Fried, Yehuda Schechter, Yaakov Shwekey, Moshe Yess and Shlomo Simcha with whom he co-starred in Israel National Radio's Miracles 18 concert. Rotenberg has also been a main fixture of the annual HASC "A Time for Music" concerts. He has produced a children's audio series called the "Marvelous Midos Machine" composed of 4 volumes, with all original material. Rotenberg