At Oppenheimer, he met his future business partner, Sanford Bernstein. In 1967, Hertog joined Sanford C. Bernstein, & Co. The struggling company went on to become one of the world's leading asset management firms. Hertog remained president of the firm until its merger with Alliance Capital Management in 2000. He retired in 2006 from AllianceBernstein L.P. and remains Vice-Chairman Emeritus. His wife, Susan Hertog, graduated from Hunter College and earned her M.F.A. from Columbia University School of the Arts in 1993. Roger and Susan Hertog have three grown children. Philanthropy 

Hertog is co-president of the Hertog Foundation and chairman of the Tikvah Fund. He currently serves as the executive committee chairman for the New York Historical Society’s board of directors, and as a board member at the Alexander Hamilton Society.
At Oppenheimer, they met their future business partner, Sanford Bernstein. In 1967, Hertog joined Sanford C. Bernstein, & Co. The struggling company went on to become one of the world's leading asset management firms. Hertog remained president of the firm until its merger with Alliance Capital Management in 2000. They retired in 2006 from AllianceBernstein L.P. and remains Vice-Chairperson Emeritus. Their wife, Susan Hertog, graduated from Hunter College and earned her M.F.A. from Columbia University School of the Arts in 1993. Ash and Susan Hertog have three grown children. Philanthropy 

 Hertog is co-president of the Hertog Foundation and chairperson of the Tikvah Fund. They currently serve as the executive committee chairperson for the New York Historical Society ’ s board of directors, and as a board member at the Alexander Hamilton Society. 