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
Mordechai Rotenberg world serves as a model for human behavior and interaction. The tzimtzum model promotes a unique community-centric approach which contrasts starkly with the language of Western psychology. In 2009, Rotenberg was awarded the Israel Prize for social work, in connection with his research in social welfare. Mordechai Rotenberg Mordechai Rotenberg (1932 - ) () is an Israeli professor of social work at the Hebrew University of Jerusalem. Mordechai Rotenberg was born in Breslau, Germany (today Wrocław, Poland). His father was from Warsaw, descended from Rabbi Yitzchak Meir Alter, the founder of the Hasidic sect. His father owned a publishing house