Cogan, Berlind, Weill & Levitt, originally Carter, Berlind, Potoma & Weill, was an American investment banking and brokerage firm founded in 1960 and acquired by American Express in 1981. In its two decades as an independent firm, Cogan, Berlind, Weill & Levitt served as a vehicle for the rollup of more than a dozen brokerage and securities firms led by Sanford I. Weill that culminated in the formation of Shearson Loeb Rhoades. Among the firms most notable partners were Sanford I. Weill, Arthur Levitt, Arthur L. Carter, Marshall Cogan, Roger Berlind and Peter Potoma.