Левада-Центр
The Levada Center was formed in 1987–88 as the All-Union Public Opinion Research Center (VTsIOM, ), under the direction of Tatyana Zaslavskaya, Boris Grushin, Valery Rutgajzer and Yuri Levada. VTsIOM was the first organization to carry out representative mass surveys within the Russian population. Tatyana Zaslavskaya, now the honorary president of Levada Center, headed VTsIOM in 1987–1992, followed by Yuri Levada from 1992–2003.